did you go on vacation? —I went to summer camp.

If he takes on this work, he will have no choice but ______ an even greater challenge.＿

Mr. Black isn’t here. He ________ to Chongqing.

_____ your telephone number?—_____65883445. [ ]

Do you know mother giant pandas have only one or two babies ______ ? — Sorry, I don’t know. [ ]