I can think of many cases _______ students obviously knew a lot of English words and expressions but couldn’t write a good essay.
I my history this time yesterday. Now Iall my work for today.
Although no one wanted to talk about it, a terrible accident happen the other day.
When the fire fighters heard a ladyfor help in the burning house, they rushed into save her.
Cats are similar _______ tigers _______ several ways.
The pen I _______ I _______is on my desk, right under my nose.