Everyone in our class ___________ to take part in the English Speech Contest.
—Have you ever _____ Mudanjiang to see the Jingbo Lake? —Yes, I have.
.—_____ you _____ your homework yet? —Yes, I _____ it ten minutes ago.
You’d better speak aloud ______ we can hear you.
—It’s very hot, but quite wet today. —_____
Now most families have only one child _____ our country’s one-child policy.