The World Wide Fund for Nature (WWF) chose the panda ________ its symbol.
A.was B.be C.is D.to be
They decided ________ to help the animals in danger.
A.raise money B.to raise money
C.raised money D.raises money
—What’s the population of Tianjin now?
—It’s about ________.
A.3 hundreds B.3 hundred
C.13 million D.13 millions
Teahouse is one of Lao She’s ________ plays.
A.more famous B.most famous
C.famous D.the most famous
It is ________ to practise in winter than in summer because the days are short and the weather is cold too.
A.more difficult B.most difficult C.the most difficult D.difficult
When you are on your bike, think about the ________ of accidents. Don’t listen to music!
A.tradition B.risk C.training D.rubbish
