—How often do you call your parents?
—______, but usually once a week.
| A．Forget it | B．Once in a while |
| C．It depends | D．I’ve no idea |
The governments are very _________ about setting a new policy and make no decision until they are quite sure it is the right one．
| A．particular | B．concerned |
| C．cautious | D．certain |
The young couple have been looking for houses，but haven’t yet found _________they can afford．
| A．one | B．that | C．them | D．it |
It is reported that a powerful earthquake ______the Italian island of Sicily early this morning.
| A．happened | B．caused | C．occurred | D．struck |
The room became ______ crowded after the desk was moved out.
| A．a little | B．fewer | C．less | D．much |
A post office should be built in a central ______ for the sake of the convenience.
| A．position | B．situation | C．eruption | D．connection |