The reason ____ he explained to us was ____he overslept.
| A．why; that | B．why; because | C．that; because | D．which; that |
．It’s disappointing that no one could _________ a good idea to help us out of trouble．
| A．come off it | B．come up | C．come up with | D．come about |
In fact, the house as well as his two cars ______ him all the money he earned during the 20 years．
| A．has been cost | B．have cost | C．has cost | D．have been cost |
---You should say sorry to her, Tom．
--- ______, but it’s not going to be easy．
| A．I suppose so． | B．I feel so． | C．I prefer so． | D．I like to． |
Canada is a country ______ many different nationalities as well as one with foreign immigrants ______ the majority of its population．
| A．consisting of; making up | B．making up of; occupied with |
| C．made up of; consisting of | D．consisted of; taking up |
．--- Where are you, Nancy?
--- Here in the sitting room, _______ to Professor Smith．
| A．is writing | B．write | C．to write | D．writing |