Tiangong Ⅰ, China's first space lab, (come back) to the earth after finishing its job on April 2this year.
Mary doesn't (real) care if her friends are the same or different.
If I'm available tomorrow afternoon,I (visit)the city museum with my brother.
We couldn't do all the work by ( us).
Look!The students (answer)the questions carefully.
We've got 3﹣day holiday (include)New Year's Day.