This photo of mine was taken ____ stood the famous tower．
| A．which | B．where | C．in which | D．there |
--Growing population resulted in growing rubbish.
--There is possibility that rubbish ________the major threat to human beings.
| A．becomes | B．is becoming | C．became | D．would become |
Though it’s not the 1st time that I ________ Beijing, I still can’t adjust myself to the weather.
| A．been to | B．had been to | C．have been to | D．went to |
It’s common knowledge that ________ United States is one of ______ biggest developed countries in the world.
| A．the; / | B．/; the | C．the; the | D．/ ; / |
Though____ money, his parents managed to send him to university.
| A．lacked | B．lacking of | C．lacking | D．lacked in |
I’m sorry，the sales manager is not________.He is on the telephone at the moment.
| A．reasonable | B．suitable | C．valuable | D．Available |