We should return the books to the library______ time.

The medicine may help with your illness, but it may make you _____ , so you must be careful not to drive a car after taking such a medicine.

Who is ______ man with glasses — Oh, he’s our new English teacher, Mr. Li.

There ______ a number of students in our school. The number of the students ______ more than 7000.

The reason _______ he gives for not coming is that his mother is ill