—Hey ,it’s you, Jackie! I didn’t think you could be here.—A big surprise ,right? I _______ for you all the afternoon.
________ very confused,the little girl looked up the information in the book to find out the answer.
Proper exercise is good for your health._____, too much is bad for it.
The local people are now________ Hong Kong, which was once ________the British for one and half a century.
Nathalie suggested the problem worth paying attention ______ at the meeting.
Someone knocked at your door just now,but I didn’t see whowas.