The headmaster and secretary as well as the teachers      discussing LiBai’s New Selected Poems that      published last month.

I took mathematics and physics because I think that ________ very important for me to make further research in this field.

–What ___ the number of the students in your school?–About two thousand. A number of them_____ from England.

Mr. White together with his three colleagues __________ at the meeting last week.

Either my parents or my brother          running.