皮皮学，免费搜题
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【单选题】
Those were the graduate assistants ______ to do the research work in the lab.A.
to whom it was their responsibility
B.
whose responsibility there was
C.
whose responsibility was
D.
of whom with the responsibility
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举一反三
【单选题】It was hot, so we _________ to the beach near our hotel.
A.
decide go
B.
decided going
C.
decides to go
D.
decided to go
【简答题】智能小区基本组成？