46.B cook→cooking
47.B 去掉of
48.A at→in
49.B of→for
50.B go→going
解释打一下吧
46.have problems doing sth
47.sth run out = sb run out of sth
48.one's love in sth 对某东西的热爱
49.it is important for sb to do sth.做某事对于某人很重要
如果用of的话 一般用在这样的句子 it is kind of you.指你人真好。所以一般of这样用,指人的品质
50.think about doing sth about是介词,后面接宾语,所以动词要加ing
B.cooking
B.ran out
A to
B to
B going