------ Who knows the meaning of the saying “ Time __________ will tell.” ------ __________ Tom knows.

We didn’t know you were in trouble at that time; _______ we would have given you a hand.

 I won’t call you ______ something unexpected happens.

 There was such a long queue for coffee at the interval that we _____gave up.

10,000 dollars is a lot of money，but it is still ______than we need for a new school.