单项选择题
Teachers should do all they can to __________ on their ...
单项选择题Teachers should do all they can to __________ on their students to do better rather than criticize them all the time.
He felt like a small boat on a(n) ___________ ocean.A．e...
单项选择题He felt like a small boat on a(n) ___________ ocean.
It is reported that the factory's new assembly line ___...
单项选择题It is reported that the factory's new assembly line ___________ next year will increase its output by at least 30%.
