A.that | B.which | C.where | D.what |
A.不填; a | B.不填; the | C.the; the | D.the; a |
A.needn’t | B.mustn’t | C.shouldn’t | D.cannot |
A.all | B.whom | C.those | D.those who |
A.a ; / | B./ ; the | C.the ; a | D./ ; / |
A.provides | B.guarantees | C.gathers | D.applies |
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