3.     What do you think is____________ (useful) invention of all? 

2.     ―What is the knife used for?

―It's used for__________ (cut) watermelons.

1.     ―__________ you ________      ( invite )   to Linda's birthday party? ―No, I wasn't.

5.     I like the__________ (款式)of the sweater.

4.     Now the hot ice-cream scoop runs on___________ (电).

3. In the passage it doesn't ______________ (提到) his name.

2. The prices are___________ (列表)here.

1.     We can learn a lot from the___________(网站)

5.    他经常帮助孩子们学习弹钢琴。

He often ________   children_________  to play the piano.

4.   你喜欢带有特殊跟的鞋子吗？

Do you like shoes__________ __________ ________ ？