He used to in the sun ,but now he is used to at night.A. read;readB. reading;readC. read;

He used to in the sun ,but now he is used to at night.
A. read;read
B. reading;read
C. read; reading
D. reading; reading

A. read;readB. reading;read(答案→)C. read; readingD. reading; reading解析：句意:他过去常在太阳下读书，但是现在他习惯了在晚上读书。第一个空前的短语used to 的意思是过去常常做某事，后面应该跟动词的原形；第二空前的短语是be used to，在这里的意思是习惯于某事，后跟动词的ing形式。故选C。

我学会了

和我的回答一样，看来我也对了

A. He didn’t pass the examB. His father is seriously illC. Lost his bike(答案→)D. What Jim said just now解析：上句的意思为：你认为什么使他如此的担忧？可知是对主语进行提问。从四个选项中看出，只有D能做主语，用what引导的名词性从句做主语，完整形式为What Jim said just now worries him so much.所以选D。