我每天早上花半个小时读英语.I spend half an hour _____ ____ English every morning.

问题描述:

我每天早上花半个小时读英语.I spend half an hour _____ ____ English every morning.

in reading
in 可以省略 这里两个空就不要省略了

in reading

in reading.spend some time (in)doing是固定搭配.还有不明白的吗?

reading
spend some time doing something是一种固定搭配