

Read the following passage and decide which answer (A, B, C, or D) best fits each gap. Write your answer in the corresponding numbered boxes.
Every human (0) ________ is born with the ability to smile. We know this because even children who are (1) _________ to see can still grin. A smile is a natural reaction (2) _________ a positive moment, like a friendly face or a clever joke. But this isn’t the first reason we smile. Most babies first smile when they (3) ________ the age of six to eight weeks. It’s usually an accident: an expression (4) _________ when exercising their facial muscles (or passing wind!). But once they realise a smile (5) _________ them a lot of attention- huge smiles and happy noises in return- they learn to try it again. And it doesn’t (6) _________ too much effort either- we need 43 muscles to frown but only 17 smile.
But not every creature can smile. Although your pet dog may sometimes (7) _______ like it’s smiling back at you, it’s not. Animals do (8) ________some of the same emotions as us, but they don’t smile. A dog’s cheerful face is more (9) _________to be a sign of confusion, while dolphins (10) _________ the muscles for facial expressions (their mouths are permanently turned upwards which makes them appear to be smiling). Animals express their joy through other movements, like a (11) ________ tail or a backwards flip. Some, (12) __________ as chimpanzees and rats, can even laugh.
Why do we smile?
Every human (0) ________ is born with the ability to smile. We know this because even children who are (1) _________ to see can still grin. A smile is a natural reaction (2) _________ a positive moment, like a friendly face or a clever joke. But this isn’t the first reason we smile. Most babies first smile when they (3) ________ the age of six to eight weeks. It’s usually an accident: an expression (4) _________ when exercising their facial muscles (or passing wind!). But once they realise a smile (5) _________ them a lot of attention- huge smiles and happy noises in return- they learn to try it again. And it doesn’t (6) _________ too much effort either- we need 43 muscles to frown but only 17 smile.
But not every creature can smile. Although your pet dog may sometimes (7) _______ like it’s smiling back at you, it’s not. Animals do (8) ________some of the same emotions as us, but they don’t smile. A dog’s cheerful face is more (9) _________to be a sign of confusion, while dolphins (10) _________ the muscles for facial expressions (their mouths are permanently turned upwards which makes them appear to be smiling). Animals express their joy through other movements, like a (11) ________ tail or a backwards flip. Some, (12) __________ as chimpanzees and rats, can even laugh.
0. | A. person | B. creature | C. creation | D. being |
1. | A. incapable | B. useless | C. unable | D. helpless |
2. | A. of | B. for | C. with | D. to |
3. | A. reach | B. make | C. achieve | D. accomplish |
4. | A. done | B. given | C. made | D. pushed |
5. | A. gets | B. pays | C. draws | D. points |
6 | A. use | B. cost | C. take | D. make |
7. | A. show | B. look | C. suggest | D. appear |
8. | A. sense | B. experiment | C. release | D. experience |
9. | A. possible | B. probable | C. likely | D. kindly |
10. | A. lose | B. lack | C. miss | D. need |
11. | A. waging | B. revolving | C. shifting | D. stirring |
12. | A. so | B. such | C. therefore | D. much |