Charlie,through his humour, one of the most popular child actors in England by his teens.
| A．became | B．had become | C．has become | D．becomes |
Joining the firm as a clerk，he got rapid promotion，and ________ as a manager.
| A．ended up | B．dropped out |
| C．came back | D．started off |
Unfortunately，at least 20 miners were killed,22 ________ and 13 ________ in the coal mine gas explosion.
| A．injuring；trapping | B．injured；trapped |
| C．injured；trapping | D．injuring；trapped |
—Where did you find the wallet?
—It was at the stadium ________ I played football.
| A．that | B．where |
| C．which | D．there |
The development of industry has been ________ gradual process throughout ________human existence，from stone tools to modern technology.
| A．不填；the | B．the；a |
| C．a；不填 | D．a；a |
Tu Youyou was ________ the 2011 Lasker clinical Medical Research Award on September 12 because she discovered a drug called artemisinin ________ against malaria.
| A．presented；using | B．presented；used |
| C．present；to use | D．presenting；used |