科目： 來源：czyy 題型：
| We must do something to stop people from ______. |
A. to throw litter about B. to throw litter into C. throwing litter about D. throwing litter into |
科目： 來源：czyy 題型：
| There are a lot of _______ down there but hardly any _______. |
A. sheeps, people B. sheep, people C. sheeps, peoples D. sheep, peoples |
科目： 來源：czyy 題型：
| Is there in his talk? |
A. something difficult B. difficult something C. difficult anything D. anything difficult |
科目： 來源：czyy 題型：
| The students when the bell rang. |
A. talking B. are talking C. were talking D. talked |
科目： 來源：czyy 題型：
| They here since they to China. |
A. have lived, come B. have lived, comes C. have lived, came D. lived, came |
科目： 來源：czyy 題型：
| The workers wear glasses to keep their eyes . |
A. safe B. safely C. to safe D. to be safe |
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