They ......... do their homework today because it is a holiday at the school.
A.must not
B.don't have
C.don't have to
正确答案是3
They ......... do their homework today because it is a holiday a
- 2024-01-14 03:48:55
- 1000道EFL基础语法练习题
They ......... do their homework today because it is a holiday at the school.
A.must not
B.don't have
C.don't have to
正确答案是3