Staying in hospital and taking special medicines ________ drug users an opportunity to stay away from drugs, which is________ the key to breaking the addiction to drugs lies.
| A．serves; where | B．provides; what | C．give; that | D．allow; where |
相关试题
We can never expect____ bluer sky unless we create_____less polluted world.
| A．a; a | B．a; the |
| C．the; a | D．the; the |
She’ll never forget her stay there ________ she found her son who had gone missing two years before.
| A．that | B．which | C．where | D．when |
My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .
| A．as | B．so | C．too | D．very |
—You speak very good French! 
—Thanks. I __________ French in Sichuan University for four years.
| A．studied | B．study | C．was studying | D．had studied |
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