–Mom, may I go swimming with my friends in the river? –No, you _________. That’s too dangerous.

—May I use your computer, Mr WU?　　　—______．

That man over there _____ be Mr Wang . He has gone to Yushu. 

There’s still an hour left, you _____ go in a hurry. 

—I want someone to write the composition for me. —No！As a student，you _______depend on yourself.