Nowadays, many people prefer ________ to the countryside ________ the fresh air.

kind teacher. But for his help, I __________ my study.

We have four classes in the morning, and ______ every two classes, there is an interval, ______ we can have a short break.[ ]

Due to bad weather, the police had to __________ the search for the missing boy.

My cousins _______ me and ask me what I was doing when I was studying in Canada