He has been to Beijing . So ______ I.A、haveB、doesC、doD、did

Lao Lin has been working in the countryside for a long time, so he _______ farm work.

He is talking so much about America as if he ____ there.A、had beenB、has beenC、wasD、been

That young man has made so much noise that he______not have been allowed to attend the con

He hopes that the little favor______he has been able to do does good to them.A．whatB．thatC

Although he has been here for half a year, he has not yet______to the climate here.A．adopt

He has been looking forward to _____ to England f