____ my teacher’s help, I wouldn’t have made such great progress[ ]

I have finished my homework.—___________.Let’s go to play tennis.

is known to us all is that the old worker, ______ life was hard in the past, still works hard in his seventies.

It took me two weeks________reading the novels written by Guo Jingming.

______ in London, the penniless American wandered on the pavement, ______ to find a job to make a living.