Is it for two months ________ they have stayed here?— NoIt’s only three weeks ________ they arrived here

Lisa, my hat is on the desk. Can you ____ it for me

This sweto buy__________. I have to choose _________ which is cheap enough for me.

t sure of the reason for the dog’s illness, but it ____ by eating too much.

You_____ use your cell phone here in our hospital because of the disturbance to the electronic equipments! It’s forbidden．