Fruit and vegetables are good for us. We need them __________ healthy.
| A．keep | B．keeping |
| C．to keep | D．keeps |
According to Ma Yun, great changes ________ in the field of online business in the1990s.
| A．took place | B．were taken place |
| C．happened | D．were happened |
Although it has rained heavily all the morning, the kids ________having P.E. classes on the playground because they will have an exam soon.
| A．put off | B．are not against |
| C．are used for | D．are absent from |
My parents and I have a(n) ________ time watching the film The Fury because everyone in the family is so excited about war stories.
| A．pleasant | B．Suitable |
| C．important | D．Uncomfortable |
In summer, food goes sour easily ________ it isn’t put in the fridge.
| A．unless | B．if | C．until | D．Though |
________ the wind beating against the window gently, the tiny baby went to sleep.
| A．With | B．By | C．For | D．In |