问题

The zoo keeper is worried because the number of visitors ______ smaller and smaller .

A:is becoming
B:become
C:became
D:to become

正确答案是：

标签： keeper , smaller , zoo

同类题型

Don’t me. I can hear you very well.

He said, “_____ a long way to school. ______ a long way to go yet before we arrive.”

Your bag is smaller than .

Did it ____ you 4 hours to get to Shanghai last week?—Yes, just 4 hours by bus.

What did Mr．Smith do before he came to China?—He in a car factory．