【题目】— I can’t find Sarah. Where is she?

【题目】Yesterday our headmaster made a speech ______ environmental protection, and we learned something about recycling of waste.

【题目】Keep trying, ______ you might surprisingly find hidden abilities within you.

【题目】_______ fun it is to have a field trip on the Orange Island!

【题目】—He hardly had friends because he used to be mean.

【题目】—Time past can not be called back again.

【题目】—Did you the International Marathon in Lan Zhou on June 2, 2019?

【题目】—What great progress Huawei in recent years!

【题目】—Shall we________the things we don’t use to the people in need?

【题目】— do you put a lot of snakes into the forest?