—Can I help you,sir?—I’d like to have 100________.I want my students to draw pictures.A.piece of paperB.pieces of paperC.pieces of papers
—Would you like to go for a picnic tomorrow? —Sorry, I have to _____ my homework.
—Why was Miss Lee angry this morning? —Because Tom didn’t _____ his homework.
We are made ________ more confident by our teacher.
He is an explorer ________ a sailor.
________ our surprise, he failed the math exam.