It’s high time that we students________ harder as the examination is drawing nearer.
There is no doubt ______ he said at yesterday’s meeting was true.
______ it will do us harm or good remains ______.
He is the first person you can think of ______, for he is always willing to ______ is in trouble.
Every means ______ prevent the water from ______.
Henry was _____ struggling at sea by a British ship, _____ he was able to survive the accident.