The blame for this accident the man who destroyed the signal.
| A．was laid | B．was attached to |
| C．attached to | D．was put |
18．An explosion in a coal mine in Heilongjiang on Nov. 21, 2009______at least 106 workers dead.
| A．promoted | B．kept | C．left | D．Created |
17．—Hi, Nancy, I didn't know you had come back. So have you graduated from college?
—Yes. I______French for 5 years in Nanjing.
| A．have studied | B．studied | C．had studied | D．am studying |
16．－What about going abroad?
－Great, but I never expected______a chance for me before.
| A．there to be | B．there being | C．there is | D．there to have |
15．The population of China_______to many times what it was in 1949, and most of its population
farmers.
| A．have grown; are | B．have grown; is |
| C．has grown; is | D．has grown; are |
14．Panda Mei Lan returned to China yesterday. She_____in US since she was born.
| A．had been living | B．is living |
| C．will have been living | D．has been living |