—_______when has the country been open to international trade?
— 1978,I suppose.
A.Since | B.In | C.From | D.After |
— Who is the letter you are reading from, Jack?
— Well, if you know, it’s from my girlfriend.
A. must | B.may | C.can | D.should |
Though it took him long to physically recover from the accident, it was only a short timehe became positive in spirit.
A.while | B.before | C.after | D.when |
—How are the peace talks between the two countries?
—We are looking forward to hearing the final.
A.competition | B.appeal | C.influence | D.outcome |
After the flood, all the emergency workersaround the clock in case the dam burst.
A.set aside | B.stood by | C.put forward | D.came up |
—Is the chemistry experiment easy? —______. I’ll just do my best.
A.I think so | B.Certainly | C.Not a little | D.Anything but |