Our English teacher，Billy，never criticizes us，but uses to make us work hard.
| A．courage | B．praise | C．surprise | D．duty |
It really seemed ages ____ the police came on the scene and cleared away the damaged cars．
| A．before | B．after | C．when | D．as |
QQ,you can chat with your friends, makes communication easy．
| A．how | B．where | C．that | D．which |
Lady Gaga has put off her concerts because of the difficulties _______by the ongoing strikes.
| A．causing | B．to cause | C．to be caused | D．caused |
________ he driven more carefully, the accident would not have happened the other day.
A
. BeB. Had C. Has D. Would have
It was ________ that saw a lot of close matches in the 16th Asian Games in November, 2010.
| A．Guangzhou | B．located in Guangzhou |
| C．in the city of Guangzhou | D．held in Guangzhou |