It is required that the students _____ mobile phones in our school, so seldom _____ them using one. [ ]

inter is of good quality If it _______ break down within the first year, wewould repair it at our expense

I advised that he ______ to the hospital at once, but he insisted that he ______ quite well then.

Jack looked very calm ________ the quarrel with hisdesk mate.

Sometimes it often rains _____ in my hometown in summer.