1. 我们从未想像过人类能登上月球。

We never imagined that man could _____________________.

2. 他买了尽可能多的食品。

He bought                      .

3.请递给我两片面包好吗？

Could you please pass me _________________________?

4. 当我们到了电影院时，票已经卖完了。

By the time we got to the cinema, the tickets _____________________________.

5. 吉米太小了，不能理解你刚才所说的。

Jimmy is so young ______________________________. 

I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .

I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .

A．sing; singing                           B．singing; sing

C．singing; singing                         D．sing; sing

I often hear him ______.Today when I pass(经过)the classroom, I hear him ______again .

1. A.
   sing; singing
2. B.
   singing; sing
3. C.
   singing; singing
4. D.
   sing; sing