【题目】The maths problem looked________ but David took an hour to solve it.

【题目】---____ you ____ your homework?

【题目】Lianyungang (发生了很大变化) over the years.

【题目】— Where's the video tape?— It's u your chair.

【题目】________a child，like many other children，I love cartoons very much.

【题目】These trees are green. Don’t _____________.

【题目】They need more people (计算和描述) the birds every year.

【题目】—What do you think of the sad news?

【题目】He’ll phone you as soon as he ________ Beijing .

【题目】—Did they cut themselves when they were playing with a knife?