10/ How about coming around for dinner on Saturday? 11/ In order to cover her school expenses, Jenny has to work part time... 12/ Unless we make attempts to reduce air pollution, it will get worse. 13/ If we had had time, we would have visited the museum. 14/ It took her 3 hours to correct the students ‘ papers. 15/ Mai is not as good at physics as Tâm. 16/ The wallet which was found by John had no name in. 17/ I am bored to tears / by the sad movie / because the movie was sad. Cách nào đúng ạ? 18/ Mary’s friend asked her what would she do on the following Sunday. 19/ Although Mr Benson is old, he runs 7 miles before breakfast. 20/Whatever has been ordered , we will deliver to you. Giúp em với ạ! Xin cảm ơn.