How long do you think it ishe arrived here?— Only half a year I believe.[ ]

Tom plays basketball_______ his friend _____school.

The young trees should______ as often as possible.

To Lihai, the most important thing is _____to win a gold or a silver, _____ to take part.

Li Na returned to Wuhan after the Games,________, as is known to us, she had been brought up and trained to be a gold medalist of tennis[ ]