Whether ways will be found to stop pollution or not is just___________ worries the public.
| A．why | B．which | C．that | D．what |
Bob could have seen the famous pop star ______ yesterday morning.
| A．did he come | B．if he came | C．had he come | D．if he should come |
–– It is ridiculous that John wants to make academic progress but never devotes any time to it.
––– Maybe it’s time for him to know______.
| A．heaven never helps the man who will not act |
| B．he who makes constant complaint gets little compassion. |
| C．hope for the best, but prepare for the worst |
| D．It is easy to be wise after the event. |
---What about your adventure in the forest last week?
---Wonderful! I didn’t expect there ______ so many lovely monkeys.
| A．to be | B．being | C．of being | D．be |
______on both sides of the street _____ excited fans who wanted to see the famous singing star.
| A．Standing; was | B．Waiting; were | C．Arriving; was | D．Living; were |
Dear, I hope the engine will ______ until we get to the next garage.
| A．hold down | B．hold out | C．hold back | D．hold up |