问题

________ is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.

A:Which
B:What
C:As
D:That

正确答案是：

同类题型

Is he Dale—— _____ . His name is Bob.

Middle school students _________ smoke because it is bad for their health.

Before you leave the classroom, pleasethe lights.

_____ they’re brother and sister, they don’t look the same.

Father _____for London on business upon my arrival, so I didn’t see him