题目内容
(请给出正确答案)
[单选题]
See the falgs on top of the building? That was_____ we did this morning.
A.when
B.which
C.where
D.what
提问人:网友yanfeng_leo
发布时间:2022-01-07
A.when
B.which
C.where
D.what
A.The author intends to discuss the issue of global warming with top government leaders.
B.The author lays stress on the research of the climate of the earth.
C.The author attaches paramount importance to the protection of the earth"s environment.
D.The author considers the relation between automating and environmental pollution.
A、is given
B、was given
C、being given
D、given
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