We can see _____ hundreds of birds flying in ____

We can see _____ hundreds of birds flying in _____ sky.

#105349

a; a

/; a

/; the

the; the

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Jumping out of _____ airplane at ten thousand feet is quite ______ exciting experience .

#9303

不填；the

不填；an

an；an

the；the

—Will you go to the park now? —Not until I ________ my physics exercises.

#104737

will finish

have finished

will have finished

had finished

The government spokesman has to____ his words before responding to reporters.

#70927

pass

cover

weigh

Express

I’ m so busy. If I       time, I      travel around.

#46734

have; would

have; could

had; would

had; will

While a huge amount of money ___been spent stopping pollution , large quantities of water_    _still heavily polluted．

#85937

have; is

has ;are

have; are

has ;has