It isn't so much whether he works hard; the question is whether he works _____.
A great fire in our town last night and many people became homeless. A.broke through B.broke off C.broke out D.broke down
Under no circumstances and at no time __________be the first______ nuclear weapons.
He hurried home, only to find his house __________.
The government have realized the use the returnees make ______ the experience and skills ________while living abroad.
Food aid______ is not enough to ______ the problem _______ now.