Question

【题目】He went to bed after he ____ his work.
A.did
B.does
C.has done
D.have done

Answer 1

【答案】A
【解析】句意：他做完工作后上床睡觉。时态要保持前后一致，主句中went是一般过去时，故从句中也用一般过去时，而BCD都是现在的时态。因此选A。