Trung ought to have made more effort to locate his book.
A.It is necessary for Trung to try harder if he wants to locate his book.
B.Trung must have worked hard in order to locate his book.
C.Trung didn’t try as hard as he should have to find his book.
D.Trung has to make the effort himself if he wishes to find his brother.
Loga
Hóa Học lớp 12
