While the police have already done a lot of investigation, much evidence ___ __.
| A．is remaining to be confirmed | B．remained to be confirmed |
| C．is remained to be confirmed | D．remains to be confirmed |
The truck ran down the hill, and the driver _____, according to the local newspaper, to have been killed.
| A．was reported | B．was reporting | C．reported | D．had been reported |
This is not an economical way to get more water; ________, it is very expensive.
| A．in return | B．on the other hand | C．in a word | D．on the contrary |
—Which of these two books will you take？
—I’ll take ______, in case the journey is boring.
| A．either | B．both | C．all | D．neither |
I know this is not quite the right word, but I can’t be bothered to think of _____.
| A．a better | B．a best | C．the better one | D．the good one |
I am looking forward to ______ your answer as soon as possible.
| A．receiving | B．to receive | C．received | D．Receive |