Topics for textbooks and conference books should be_______ to the experiences and interests of the students.
| A．relevant | B．concentrated | C．reliable | D．based |
---Is this our new office, Jim?
---Yes, and ______．
| A．that’s all right | B．it’s ok |
| C．after you | D．you can find it |
--- I’m not good at singing, you know.
--- . It’s just for fun.
| A．All right | B．No problem | C．Come on | D．Cheer up |
______ it have been the failure to pick up directions from the ground control that caused the air crash?
| A．Must | B．Could | C．Would | D．Should |
Tom showed me his new cell phone, _______ was small but it could change colors in different weather.
| A．the screen of whom | B．whom the screen of |
| C．which the screen of | D．the screen of which |
The April 10, 2010 air crash, with a Russian Tu-145 plane Poland’s president Lech Kaczinsky, his wife and many Polish government and military officials, shocked the whole world.
| A．carried | B．being carried | C．carrying | D．to carry |