________ is no difference between them.
| A．There | B．Where | C．It | D．What |
We shouldn’t spend our money testing so many people,most of _______ are healthy.
| A．that | B．which | C．what | D．whom |
—It was really very kind of you to give me a lift home.
—Oh,don’t mention it.I _______ past your house anyway.
| A．was coming | B．will come |
| C．had come | D．have come |
When you’ve finished with that book,don’t forget to put it back on the shelf,_______?
| A．do you | B．don’t you | C．will you | D．won’t you |
Leave your key with a neighbor _______ you lock your-self out one day.
| A．ever since | B．even if |
| C．soon after | D．in case |
I got caught in the rain and my suit _______.
| A．has ruined | B．had ruined |
| C．has been ruined | D．had been ruined |