An invention is a new way of solving a problem, so try our best to think of many __________ and unusual ways.
| A．varying |
| B．variety |
| C．varied |
| D．variation |
-- He said you’d be giving them a lift.
-- ________. There are already five people.
| A．Why not? | B．Not likely. | C．What of it? | D．All right. |
-- Who is dancing to music in the next room?
-- ________ the children.
| A．It is | B．They are | C．That is | D．There are |
Check your paper carefully to see ________ you have made any mistakes.
| A．what | B．which | C．whether | D．that |
It rained a lot during their journey, so they ________ have had a good time.
| A．must | B．can’t | C．shouldn’t | D．might |
People ________ with anyone who is always talking about how wonderful he is.
| A．fall in | B．keep company | C．catch up | D．get fed up |