He will give the prize to ______ the committee recommend.
答案：whom
I will ask ______ I want to the party.
答案: whom
It is the time ______ Chinese people shold remember.
答案：that
s that the very place_____ we visited the year before last?
答案：that/which
The science of medicine, ______ progress has been very rapid lately,is perhaps the most important of all the sciences.
答案：in which
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