“If I ________ taking drugs, I would be asuccessful businessman now,” said the dying drug addict.

The law says that all public buildings must beaccessible to people who have trouble _____

Let’s _____ some dumplings for the Spring Festival.

Why are you staring at me? — You look stupid! The way you wear is _____ annoys me most. [ ]

I often chat with my friends on the Internet.—You are so smart! Will you please tell me ________