1.Don′t worry about them.they_____do well in the exam a,can be able to b,be able to c,can able tod,are able to

问题描述:

1.Don′t worry about them.they_____do well in the exam a,can be able to b,be able to c,can able to
d,are able to

D
be able to do sth. 有能力做某事