Last Friday we went to the Forest Park to have a picnic. After that, we _________to write an 800-word composition.
Please _______the light when you leave the classroom.
—Can you answer this question? -- Sorry, I can _________ understand its meaning.
---Hurry up, _______ you will miss the exciting part of the film.
This book _______ be Li Lei’s. Look! Her name is on the cover.
---Do you know the man ________is wearing a black coat? —Yes, he is my uncle.