21. English is a language shared by several different cultures, each of ______ uses it differently.
A. which B. that C. them D. those
22. A bank is the place ______ they lend you an umbrella in fair weather and ask for it back when it begins to rain.
A. when B. that C. where D. there
23. The temple________ the 10th century is very attractive.
A. is dated back to B. dates back to C.is dated from D. dating from