—How many times have you been to China? —In fact, it is the first time I _________

—How many times have you been to China? —In fact, it is the first time I __________ here.

#92058

have been

had been

was

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(2009宁夏银川模拟) In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.

#95057

that some scientists say

in which some scientists say

some scientists say that

some scientists say

It was five hours _____ the French climber reached the top of the world’s tallest building.

#91942

since

that

before

when

This is the first time we ________ a film in the cinema together as a family.

#92830

see

had seen

saw

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 In my bedroom, I have a small desk _____.

#94751

to write

writing

to write on

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We’re programmed to want more food,       we won’t have a chance to eat tomorrow．

#93041

even though

just in case

in which way

in which case

there be句型

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