英语紧急提提提提提问,高手请请请请进

题目

英语紧急提提提提提问,高手请请请请进
选择题.几道
回答 正确且 好的话 我会追加分数的 相信俺=.=
开始 了
1.Cats _______ have nine lives
A.supposing Bsuppose C.are suppose to D/.are supposed to
You must remember ______
A.what your mother said B.what did your mather say
C.your mother said what D.what has your mother said
The tercher said light ______much faster than sound
A.go B.travel C.travels D.went
He thought he was ___to be a voluteer to teach in China's rural areas.
A luck
B luckily
Cunluckily
D lucky
因为 时间紧急阿 大家能回答几道就回答几道
准确率稍微高点点 那个还有如果有字母打错的请谅解./

答案

D,be supposed to 应该,据说.据说猫有九命.
A,宾语从句.
C,老师说光速比音速快得多.这是个客观事实,所以只用一般现在时态就可以了.
D,luck是名词,luckily是副词,lucky是形容词.他认为他来中国的农村成为支教的志愿者是很幸运的.很显然要填个形容词.
想必是小学生或是初中生吧