Once harm is _______ to the eco-system, all species will ________, including man himself.

You can call me______0512-51234567 or e-mail me ____ lily@changshu.com.cn.

promised to go to the party with Jane and I can’t ___________her ___________.

_____ he wasn’t ready in time, we went without him

Could. I_______ This pair of shoes is nice.