--- What a lot of fun it is to play on a frozen sports field! --- Isn’t it rather risky, ?
--- I recommend you first give up smoking, and then try to find a job so that you’ll start a new life. --- _______.
The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct.
______ we think of Ben, we have to admit that he is a highly competent man.
Lin Tao has returned from the UK recently. He ______ at Cambridge for four years, during which we ______ with each other on the Internet.
Generally my father is a mild man, but when he gets angry, he ______ be fierce.