问题

Look at the boy running on theplayground. Is it David—It ______ be him. I saw him go to theteachers’ office just now.

A:mustn’t
B:can’t
C:couldn’t
D:must

正确答案是：

同类题型

He didn’t go to the lecture this morning, did he—_____.Though he wasn’t feeling very well.

Peterisnothimselfthesedays. —well,couldyoutellme________

When you finish reading this book, you will have__________better understanding of ________ life.

下列对文章内容的概括，不准确的一项是（）

a, having devoted all his life to the freedom ofSouth African Blacks, is a real fighter for us to_________.