----I failed again. I wish I _________ harder.
---But you _________.
| A．had worked; hadn’t | B．worked; didn’t | C．worked; don’t | D．had worked; didn’t |
In the center of the square _________ a statue which is the symbol of our school.
A. lying B. stand C lie D stands
--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 |