Hard as a teacher may try, he can’t ____
题型:选择题
问题:
Hard as a teacher may try, he can’t ______to make all his students make a difference in study, letting alone in life.
A.make sure
B.be sure
C.guarantee
D.insure
Hard as a teacher may try, he can’t ______to make all his students make a difference in study, letting alone in life.
A.make sure
B.be sure
C.guarantee
D.insure