I wish for a family____________my parents are treating me like a friend.
| A．why | B．which | C．that | D．where |
What seems to be a simple idea always turns out _____ that is hard to put into practice．
| A．the one | B．one | C．ones | D．another |
We regret _____ you that．because of the necessary repair, our library will be closed next month．
| A．to inform | B．informing | C．to inform of | D．of informing |
To my great joy．I got a chance to take a photo with Andy after the vocal concert, which I _____forward to for years．
| A．have been looking | B．had been looking |
| C．looked | D．had looked |
Li Ming, don't forget to turn off the lights before you leave the office, _____?
| A．won't you | B．should he | C．shall we | D．will you |
_____ is well known to the world is that China has very top technology in space industry．
| A．It | B．As | C．What | D．Which |