The time he has devoted in the past years ____ the disabled is now considered ____ of great value.
A. to help; being B. to helping; to be C. to help; to be D. helping; /
____ only 20 minutes to go before the train left, I felt uneasy in the taxi to the railway station.
A. For B.I had C. With D. As
It is ____ you deal with difficulties that shows ____ you are really like.
A. what; what B. how; what C. how; that D. which; how
As is natural, a man as old as he ____ be very forgetful.
A. can B. should C. would D. must
Can’t we just live in today, _______ the worries of tomorrow or the regrets of the past?
A. free from B. aware of C. sure of D. tired from
I had been puzzled over the problem for over an hour without any result, ____ all at once the solution flashed across my mind.
A. while B. when C. then D. as
