In spring, we can often hear some birds_______ in our school.

What do you think of the talk–To tell the truth ,it was______。Many of us were soon ______of it and began to do something else.

Tony and Sam ______ my friends. Their mother _______ our English teacher.

You will make great progress in English ______ you never give up.

____ by his grandparents, Jimmy wasn’t usedto living with his parents.