He has no money nor friends here. That’s why he ______ sleep in the street.
A.must | B.has to | C.should | D.may |
—Will Thursday or Friday __________ you?
—Either will __________
A.fit; be |
B.fit; OK |
C.suit; all right |
D.suit; do |
Experiments of this kind __________ in both the U. S. and Europe well before the Second World War.
A.have conducted |
B.have been conducted |
C.had conducted |
D.had been conducted |
It's no use __________ without taking action.
A.complain |
B.complaining |
C.being complained |
D.to be complained |
Even the best writers sometimes find themselves __________ for words.
A.lose |
B.lost |
C.to lose |
D.having lost |
I am afraid he's more of a talker than a doer, which is __________ he never finishes anything.
A.that |
B.when |
C.where |
D.why |