Someone is knocking at the door. – It ______ be Tom. He is still in the school.

________full use of the chance, or you will never achieve your dream of overseas study

Iraq has ___________ too many wars since 1990s, making his people ______ a lot.

It’s only ten minutes’ walk; I could have got there on foot— YesA taxi _______ not at all necessary

He will be in charge of the company, for he has rich experience in business.