Do you know the man ________ visited the United States in February? –Yes. He is Chinese Vice-President Xi Jinping. He said it was his _______ visit to the United States.

After a knock at the door, the children heard his mother’s voice him．

________full use of the chance, or you will never achieve your dream of overseas study.

The summer holiday is coming. We’re going to have _______ holiday.

Whose hat is this? — I think it can’t be John’s or Kate’s. It’s much too small for __________.