Mr. Wang often says to her child, “You _______ play with fire(火). It’s dangerous.A. mustn’t B. had better C. needn’t
Can you help me ________ these books to my bedroom?
My friend Lisa is good at ________.
—Let’s watch TV. —________.
—Hi,can I help you? —________.
Jenny,put on your coat ________ you will catch a cold.