It’sreally difficult to ______ what he is trying to express.

(2013·安徽高考)—How did your interview with the manager go—________ He seemed interested in my experience，but he didn’t ask for references.

They _____ the _____ snake by using a special kind of powder. [ ]

Excuse me, can you tell me___________–Sorry, I don’t know. You can go to the information desk.

If you had seen a doctor, you much better now.[ ]