Mr. Daniel is now in our school, but he once __ in NO. 1 Middle School for three years.
| A．works | B．worked |
| C．had worked | D．has worked |
When you are on the bus to work in the morning, smile to the people sitting beside you, you will get his smile ______.
| A．in place | B．in need | C．in return | D．in relief |
_______ we _______ the new policy for economy, we would never have bought the house.
| A．If ; predicted | B．Did; predict |
| C．If; have predicted | D．Had; predicted |
If you _______ just wait for a moment, I’ll try to find your papers.
| A．must | B．may | C．would | D．need |
Riding a bicycle can be fun. But _______ you ride a bike to work, and then there isn’t one to ride home?
| A．how come | B．what if | C．no matter how | D．wherever |
We consider it necessary that a plan _______ before doing the work.
| A．is made | B．will be made | C．should be made | D．made |