It is strongly suggested that measures _____students to cheat in the exams.

There is ____ “l” and ____ “u” in the word “luck”.

They were_______ busy_______ with each other__________the time.

－How long doesit take us to go to your school from here－It takes us houror more to go to my school by bus.

21．The doctor couldn’t answer the question _____ the patient could survive that night