Bing Xin is famous ________children’s works.

The place_____ the bridge is supposed to be built should be _____ the cross-river traffic is the heaviest.

We had to ______ our visit to the Bird Nest because we didn’t have enough time to see them before we left Beijing.

_______ will the fog and haze(雾霾) last —I have no idea. There is no sign of an end.

“You can’t have your football back______youpromise not to kick it at the window again!” the old lady said angrily.