I think he ________ to get more qualifications before applying for the job, but he didn't.

　 A. should have tried B. must have tried　

C. cannot have tried 　 　　D. ought to try

It’s silly ________ him to be jealous ________ his friends; I think he should get rid ________ this bad habit．

1. A.
   for; of; off
2. B.
   of; of; of
3. C.
   of; for; of
4. D.
   for; to; of

— John seems happy, even though his wife left him and he lost his job.

— I think he __________ to put on a brave face.

A．will try            B．has tried          C．had tried          D．is trying

— John seems happy, even though his wife left him and he lost his job.
— I think he __________ to put on a brave face.

---He lost his job last week, but he seems happy．

---I think he _____ to put on a brave face．

A．is trying          B．tries          C．tried        D．has tried