I used to in the river. But now I am used to in the swimming pool.

Nowadays,people have to ________ natural disasters caused by global warming. [ ]

.Tom_______at least three coffees every dayuntil his doctor told him to limit it to one.

There was ________ time ________ I hated to go to school.

If only he _____ quietly as the doctor instructed, he would not suffer so much now.