A.It would do him good to go out for a while.B.He ought to do the first ten problems again.C.She could help him with the problems.D.He should be finished with the problems by two.
A.It would do him good to go out for a while.
B.He ought to do the first ten problems again.
C.She could help him with the problems.
D.He should be finished with the problems by two.