Finding information in today's world is easy. The ________ is how you can tell if the information you get is useful or not.
| A．knowledge | B．ability |
| C．competition | D．challenge |
— The journey was not as nice as we had expected．
— _________. The weather was awful and the time was short．
| A．I don’t agree | B．I don’t think so | C．Absolutely | D．Come off it |
The skirt __________ she spent 50 yuan is very beautiful on her.
| A．in which | B．on which | C．for which | D．which |
I’ve read all the books ______you gave me.
| A．who | B．whose | C．whom | D．that |
Only when Michael had his own child ____ making a kid grow up healthily was too hard.
| A．he realized | B．had he realized | C．did he realize | D．he had realized |
— Why does he walk like that? It seems that he has great difficulty in walking.
— Because he got ____ in an accident three years ago.
| A．damaged | B．wounded | C．injured | D．destroyed |