.. ---How did your students express their thanks to you on Teachers’ Day? ---A gift together with many flowers _______ sent to me .
The reason ______ he gave his teacher for being late is ______ there was a lot of traffic on the road.
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 ______.