{01}I think you’ve got to the point a change is needed, otherwise you will fail.
A.when
B.that
C.where
D.which
解析:本句是一个定语从句,先行词是the point,从句是对其限制说明,where在从句中作状语。 本题选C。 {02}The meeting was expected to start at 9 o"clock but the manager didn"t turn up ______ twenty minutes later.
A.before
B.until
C.after
D.since
解析:本句含到了时间状语从句,也可以看成是not…until…结构,意为“直到…才…”。句意为“直到20分钟后经理才出现”。 本题选B。 {03}The _____, I think, he drew from his simple experiment is not scientific.
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