All flights ____ because of the snowstorm, many passengers could do nothing but take the train.

 All flights ____ because of the snowstorm, many passengers could do nothing but take the train.

#100988

had been canceled

have been canceled

having been canceled

being canceled

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Proper first aid can save a seriously injured person，especially when he or she is bleeding heavily or______.

#104358

has poisoned

was poisoned

has been poisoned

is poisoning

Prices____ all the time and no one knows when they         stable.

#101890

are going up; become

have been going up; will become

have gone up; will become

have been gone up; become

The theory he had stuck _______ to be true.

#104225

proved

to proving

to prove

to proved

I _____glasses since I was in primary school and I hate them. They make me look like a bookworm.

#99247

have worn

have been wearing

have been worn

was wearing

Foreign Ministry spokesman Hong Lei on Friday again urged Japan to make serious efforts for the improvement of the relationship between the two countries and honestly face up to and____ its history of militarist aggression.

#99251

look on

concentrate on

reflect on

hold on

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