Ladies and gentlemen, please fasten your seat belts．The plane ________．

takes off

has taken off

took off

is taking off．

The singer sang one more song at the ________ of enthusiastic fans．

command

recognition

request

service

I was crazy ________ it ________ me two hours to get ________ in the restaurant yesterday．

because, spent, serve

because of, cost, serving

because of, took, served

because, took, served

Don’t be discouraged．________ things as they are and you will enjoy every day of your life．

Taking

To take

Take

Taken

Samuel Clemens, ________ Mark Twain, became a famous American writer．

was known as

known as

was known for

known for

People in Chongqing are proud of ________ they have achieved in the past ten years．

that

which

what

how

All of a sudden, a man who held a gun knocked down an old woman and took her bag, ________ round the corner．

disappeared

disappearing

having disappeared

to disappear

I find painting and listening to music ________．

relaxing

is relaxing

relaxed

are relaxed

When I was at college I ________ three foreign languages, but I ________ all except for a few words of each．

was speaking ;forget

spoke; have forgotten

spoke; forgot

spoke; forget

Elizabeth Blackwell, who, in 1849, became the first woman ever ________ a medical degree in the USA, fought ________ women’s rights bravely．

receive; for

to accept; for

to receive; for

get; against