-----I think you us an explanation.
-----I will prove what I have done is right and I mean no harm.
| A．give | B．owe | C．need | D．want |
_______ you get on well with a number of people, you are usually friends with only a few.
| A．Since | B． As | C． While | D．Even |
Sir, you ______ be sitting in this waiting room. It is for women and children only.
| A．oughtn’t | B．shouldn’t | C．won’t | D．needn’t |
As is announced in the newspaper, the 20th World Cup __________ in 2014 in Brazil between June and July.
| A．is held | B．will be held | C．will hold | D．will be holding |
The buses, ________ were already full, were surrounded by an angry crowd.
| A．most of them | B．which most |
| C．most of which | D．that most |
In many countries more and more forests and even agricultural land are being lost to development, _______ much of the land to become desert.
| A．caused | B．causing | C．having caused | D．to cause |