The place was flooded ________ it had been raining for several weeks.
| A．because | B．because of | C．ever since | D．as a result of |
----I have got a headache.
---- No wonder. You ________ in front of that computer too long.
| A．work | B．are working | C．worked | D．have been working |
The police ________ the lost child and tried to find his parents.
| A．took up | B．took in | C．took over | D．took after |
It’s very hard for Mary to work here, for ______ she does can’t satisfy her boss.
| A．what | B．whatever | C．which | D．whichever |
______ that he has wasted too much time, the boy is determined to stop playing video games.
| A．Realized | B．Realizing | C．To realize | D．Having realized |
—Can you lend me the book Gone with the Wind?
—Sorry. I returned it to the library just now. Maybe it is still ______.
| A．affordable | B．acceptable | C．available | D．avoidable |