—When did you have your school trip?— .A. In five days. B. Five days ago. C. For five days.
—You should ______ carefulin your work and life every day. —You’re right.
—_____ do you _____ English? —I like it very much.
—Which bus do I need _____? —Bus No. 818.
The sign means “ _____”.
Look! The students _____ the classroom.