James is ________ boy.A. a 18-month-oldB. an 18-months-oldC. an 18-month-old
—I'm going to visit Yellow Mountain with my family this weekend. — ________.
Don’t worry! I’ll do what I can you when you are in trouble.
—I have never been to African countries. What about you? — ________.
—Do you think if Tom the work well? —I think he will if he his best.
These books were really good, so she couldn’t.