1. a. more early--> earlier
b. carrying--> carry
c. happily--> happy
d. little--> few
e. did--> would
f. whose--> who
2. a. If you don't run, you will miss the bus
b. Although it rains heavily, my father walked to the office
c. If Minh had time, he would learn to play the piano
d. I have never...