My grandfather used to build railways for the Japanese army(军队) when he was young. He was ______ to work hard from morning till night.
| A．invited | B．encouraged | C．allowed | D．forced |
--_______ are you going back to London, Tony?
---At the end of July.
| A．How | B．When | C．Why | D．Where |
Thanks to better health care, more people are living _____ lives today than before.
| A．longer | B．richer | C．busier | D．easier |
The Science Museum is popular because people _____ do experiments there.
| A．can | B．must | C．would | D．should |
In America, you can open your presents immediately. You don’t have to ______!
| A．pay | B．wait | C．check | D．prepare |
Too much fast food is bad for us. We should only have it _____.
| A．all the time | B．from now on |
| C．at the moment | D．once in a while |