John and I ________ friends for eight years. We first got to know each other at a Christmas party. But we _______ each other a couple of times before that.
– She isn’t feeling very well today.---You’re right. ______ to have caught cold.
Seeing from the foot of the mountain, clouds are seen beautifully ____over its top.
A person will ____ remember the advertisement but not the name of the products.
Generally speaking, children living in a city can not _____ ox ____ cow.
The purpose of the advertisements is to ______people’s attention, _____them to buy the things.