_____ number of the students is 4,0000 , much more than last year.
—Have you cleaned your room_____? —Yes, I’ve_____cleaned it.
—When did the Greens come to China? —They_____ China for seven years.
— The food here is very nice. Thank you for inviting me.—____________.
— ___________ go for a walk after school? — Good idea!
— Philip has gone to New Zealand.— Oh, can you tell me ____________?