—________ when has the country been open to international trade?
—1978,I suppose.
A.Since B.In C.From D.After
What shall we use for power when all the oil in the world has________?
A.given out B.put out C.held up D.used up
No matter what you do,you must ________ your mind________ it.
A.put;to B.keep;on C.apply;on D.put;into
He thinks only of himself;he doesn’t________ other people.
A.care about B.care for C.care of D.care to
With that calm and________ expression of hers,our anxiety almost disappeared into the air.
A.confusing B.determined C.opposing D.confused
He trusts you,so only you can________ him to give up that crazy idea.
A.tempt B.persuade C.advise D.try to persuade