So that all the living things are dying out gradually .
A. serious polluted the lake is B. serious polluted is the lake
C. seriously polluted the lake is D. seriously polluted is the lake
As is known to all, Yang Liwei has become a space hero is we have expected．
A．that; which B．what; that C．what; which D．that; what
They weren't a particularly good team, but they refused to give in and _____ defeat.
A. accept B. accepted
C. accepting D. to have accepted
He dressed up and went to the party as if ___________.
A. was invited B. had been invited
C. invited D. to be invited
She may have missed the train, in _____ case she won't arrive for another hour.
A. whose B. that C. which D. what
We’ll be free tomorrow，so I suggest ______ to the history museum.
A. to visit B. visiting C. we should visit D. a visit
