问题补充：
－So hardin the past few months that he has got an A in the Mid－term English Exam.
－I can see that only a few studentsfor it.
A. has he worked; has the teacher praised.
B. has he worked; the teacher has praised.
C. he has worked; the teacher has praised.
D. did he work; has the teacher praised.
答案：
A. has he worked; has the teacher praised.
(答案→)B. has he worked; the teacher has praised.
C. he has worked; the teacher has praised.
D. did he work; has the teacher praised.
解析：可联系答.案.网客服索取。
