Many countries are increasing their use of natural gas, wind and other forms of        .

    A. energy         B. source         C. power          D. material

The reporter said that the UFO         east to west when he saw it.

    A. was traveling                    B. traveled

    C. had been traveling               D. was to travel

--I haven’t heard from John for a long time.

    --What do you suppose            to him?

    A. was happening                    B. to happen

    C. has happened                     D. had happened

There is        cooking oil left in the house. Would you go and get        .

    A. little...any   B. little...some  C. a little...any D. a little...some

When first        to the market, these products enjoyed great success.

    A. introducing    B. introduced     C. to introduce   D. being introduced

The most interesting thing        we should pay attention to is the first thing

       I have said.

    A. which...that                     B. that...which

    C. which...which                    D. that...that

There is something wrong with my bike, so I’ll get it        tomorrow.

    A. repairing      B. being repaired C. to repair      D. repaired

We don’t allow        in the lecture hall, so you are not allowed        here.

    A. smoking...smoking                B. to smoke...to smoke

    C. smoking...to smoke               D. to smoke...smoking

--Look at the black clouds. It        soon.

    --Sure. How I wish we        out!

    A. is raining...didn’t come        B. is to rain...won’t start

    C. will rain...haven’t started     D. is going to rain...hadn’t come

There are few areas left where pandas can live,        ?

    A. aren’t there  B. are there      C. is there       D. isn’t there