It rained heavily in the south， serious flooding in several provinces.
| A．causing | B．having caused | C．caused | D．to cause |
_____ important thing in life is to have a great aim, and ______ determination to attain it.
| A．An ; 不填 | B．A ; the | C．The ; the | D．The ; 不填 |
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 |