Our English teacher insists that we spend more time on some ______ reading.

Our English teacher insists that we spend more time on some ______ reading.
选项:
a、worthwhile
worthwhile adj.（形容词）Sufficiently valuable or important to be worth one's time,effort,or interest.值得的：非常有用的或重要的而值得耗费时间、投入力量或引发兴趣的 该词可作前置定语
worth和worthy均应视为表语形容词置be后
It isn’t cold enough for there ____ a frost (霜) tonight,so I can leave Jim’s car out quite safely.
选项:
d、to be
for there to be…在句中做程度状语
Your hair needs ______.You’d better have it ______ tomorrow.
选项:
d、 to be cut… done
need后面可以接ing或者to.用to必须被动.have sth done固定用法.
I would have argued with him about the matter ______ an opportunity of meeting.
选项:
c、 had I had
1.虚拟语气：由主句中would+have的结构可知只是对过去的假设,从句应用过去完成式.
2.省略：当If引导的从句中含有have/am时可省略if,并将have/am提前倒装.如题中正常语序为If I had had an opportunity of meeting.
Do you agree ____ me that children should not be allowed to do as they like?
选项:
c、with
同意某人用agree with somebody
Mrs.Brown asked me to go to her daughter’s concert and I ______ her invitation with pleasure.
选项:
b、 accepted
很高兴地接受.用accept