问题
tronaut did many experiments in the spaceship, ______much help for knowing space.
A:which we think it is
B:which we think are of
C:of which we think are
D:I think which is of
B:which we think are of
C:of which we think are
D:I think which is of
正确答案是：
同类题型
ot in the shopping mall, because the air-conditioningsystem ______
Progress so far has been very goodWe are________confident that the work will be completed on time[ ]
Jenny looks hot and dry.— So______ you if you had a high fever.
In which pair of the words, the underlined parts pronounce differently