最好解释一下为什么选几个,不然只知道答案没有哈.

最好解释一下为什么选几个,不然只知道答案没有哈.
1、Last week I bought a flat ____________biggest room faced south.
选项:
a、that
b、whose
c、which
d、where
2、 After the negotiation ,the manager will ____at the airport.
选项:
a、see you out
b、see you off
c、see you leave
d、see you fly
3、The woman has not yet ____the loss of her son.
选项:
a、got up
b、got by
c、got over
d、got around
4、What is your attitude____his criticism?
a、against
b、for
c、towards
d、in
5、The sound of the motorboat ____away in the distance.
选项:
a、faded
b、fenced
c、fancied
d、fastened
7、When there are small children around ,it is necessary to put bottles of pills out of____.
选项:
a、hard
b、hold
c、place
d、reach
8、I,as well as he,__________a student.
选项:
a、be
b、is
c、are
d、am
9、He seldom does his homework at school on weekdays,__________he?
选项:
a、doesn’t
b、isn’t
c、does
d、is