1.轮到他们打扫教室了。

It’s _______ _______ to clean the classroom.

2.到目前为止，我学了大约1 500个英语单词。

________ ________ I have learned about 1 500 English words.

3.晚饭后Elise经常和妈妈一起去散步。

Elise often goes _______ ______ with her mother after supper.

4.杜斌盼望着观看下周的篮球赛。

Du Bin is _______ _______ _______ watching the basketball match next week.

5.这家工厂有数千名工人。

There are _______ _______ workers in this factory.