He teaches in ___ university and is ___expert on politcs.
| A．an, a | B．the, a | C．a. an | D．a. the |
Maybe you have travelled to many parts of the world, but nowhere else striking attractions.
| A．you can see so many | B．can you see such many |
| C．you can see such many | D．can you see many such |
—Thank you so much for changing the flat tire for me.
—Don’t mention it. I only did what anyone else in my place.
| A．must do | B．should do |
| C．may have done | D．would have done |
Children diet is high in fat or who are not active will gain weight quickly.
| A．what | B．whose | C．who | D．that |
the spring warmth approaches, many students are setting up sports groups.
| A．As | B．Unless |
| C．If | D．Although |
He always the high spirits and wears smiles even if he is in great trouble.
| A．holds up | B．keeps up |
| C．sets up | D．takes up |