––What a journey! We’ve finally arrived!––_____ an out-of-date train schedule, we would not have missed the train.
With so much homework to do, _________to play football.
_________ with the size of the whole earth, the biggest ocean does not seem big at all.
I recognized him_________ I saw him in the crowd.
—Li Ming went abroad in 2000. —No wonder. I ______ him ever since.
______ difficult the problem was, he tried his best to solve it.