-You needn't take an umbrella. It isn't going to rain.
-Well, I don't know. It __________ do.
| A．might |
| B．need |
| C．would |
| D．should |
--- Did you ask the guard _______ happened?
--- Yes, he told me all _______ he knew.
| A．what; that | B．what; what | C．which; which | D．that; that |
Smoking, _______ is a bad habit, is, however, popular.
| A．that | B．which | C．it | D．though |
You can depend on whatever promise _______ he makes.
| A．/ | B．why | C．when | D．whose |
.He is not such a man _______ would leave his work half done.
| A．that | B．which | C．who | D．as |
My neigh bours used to give me a hand in time of trouble, _______ was very kind of them.
| A．who | B．which | C．that | D．it |