I can think of many cases _____ students obviously knew a lot of English words and expressions but couldn’t write a good essay

of the three optional courses didyou like best, Joe—To tell you the truth, I didn’t like_______ of them.

Oh, I failed again—Don’t lose heartOne more effort, ________ you will succeed

This book ___ be yours. Look! Here is your name.

Please never do such things _______ other people