—________I have lunch now, Mom?—No. You must wash your hands first. A.Would B.May C.Ought to
—______ is this?—It's yellow.
There is a police car _____ the bus. The police are watching the traffic.
—Lily, here are your pens. Please _____. —OK, Mom.
—_____ do you have an art lesson? —Four times a month.
—You should ______ carefulin your work and life every day. —You’re right.