Sean has formed the habit of jogging the tree-lined avenue for two hours every day.
Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.
What would have happened, as far as the river bank?
Rather than on a crowded bus, he always prefers a bicycle.
—Remember the first time we met? —Sure.You__________ the novel Pride and Prejudice in the library.
I can think of many cases students obviously know a lot of English words and expressions but couldn’t write a good essay.