Why don't you give the boy a rest? He______ math for four hours.
A、studies
B、has been studying
C、has studied
D、have been studying
【正确答案】：B
【题目解析】：上册P245
Why don't you give the boy a rest? He______ math for four hours.
- 2024-08-22 04:56:20
- 综合英语（一）(00794)