-What sort of house do you want to have? Something big?--Well, it ______ be big--that's not important.
. It is necessary that whoever ______ recently visited the country ______ this kind of test.
His composition won first prize, ______ made him too happy to sleep for nights.
We are waiting ______ for your absence.
With little knowledge about the area he succeeded ______ many researchers failed.
A very beautiful scene spreads in front of the mountain, at the foot of which ______.