The bomb______at 11:15 a.m. and killed 36 persons altogether.
| A．exploded | B． exposed | C． exploited | D．exported |
Our English teacher is wearing a gold watch, ________are made of small diamonds
| A．whose the hands | B．of which hands |
| C．the hands of which | D．the hands of whom |
__________at the door before you enter the office，or you’ll be considered impolite
| A．Knocking | B．Knocked | C．Knock | D．To knock |
It was March 14th．2013__________Xi Jin ping was elected chairman of the People’s Republic of China
| A．in which | B．that | C．until | D．when |
Camacho，the former Chinese football coach，__________ in China between 2011 and 2013
| A．have worked | B．worked | C．had worked | D．works |
—Mum, shall I watch the TV program Happy Camp today?
—__________.You have so much homework to do!
| A．Forget it | B．Not at all | C．Go ahead | D．That’s right |