單項(xiàng)選擇題

When the lights turn red, the traffic（）stop.

A.can
B.may
C.must
D.needn't

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單項(xiàng)選擇題

When Lily came home at 5 p.m. yesterday, her mother（）dinner in the kitchen.

A.cooked
B.was cooking
C.cooks
D.has cooked

單項(xiàng)選擇題

When I was a child, I enjoyed（）picturebooks.

A.read
B.to read
C.reads
D.reading