--- The young man spent as much time as he _______ the experiments. --- No wonder he succeeded _______.
Not until they left school how much their teachers loved them and helped them.
It’s nice to see you again. What since we last met?
--- Shall we take the 10:20 train? --- No. If we took that train, we too late.
--- I had thought he would be nervous in this speech competition, but he turned out to be calm. --- He quite enough preparation for it.
Don’t give up regardless of difficulty and failure, you’ll never achieve your goals.