A good rest between classes ________ recover brain power to its best and make us perform better in class later.
The teacher went into the classroom, ________the boy_________ outside.
Success always comes after many___________ ,in other words,___ is the mother of Success.
______we can’t get seems better than _______we have.
he can pass the entrance examination is quite uncertain.
When you are confused about some words in reading, you can ______ the dictionary.