题目内容
Cars moved very slowly in the 1930's,but they ________ faster than in the 1920's.
- A.were moving
- B.did move
- C.had moved
- D.would move
B
do/does/did+动词原形,是强调的一种形式,据题意可推断出用过去时态。
do/does/did+动词原形,是强调的一种形式,据题意可推断出用过去时态。
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