—Please ________ to return my book by Friday.I’ll use it on Saturday.—No problem.I’ll finish reading it on Thursday.
Old Mr. Black lives happily with his three dogs. of them are part of his family.
— can you finish the report on food safety?— In two days.
The traffic is moving very slowly as so many cars on their way back to Shanghai.
Students are encouraged to share their learning experience__________ their classmates.
More and more people in Shanghai choose to go to work__________ underground.