题目内容

This time yesterday Jack ______ (mend) his bike.

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It was six. The Greens ______ (have) supper.

When you (knock) at the door yesterday,I (do) some washing.

When I arrived at his office,he _____on the phone.

A. was speaking
B. spoke
C. had been speaking
D. had spoken

自动起动停车技术就是致力于最大限度减少 ______ 时燃油的损耗。