The Great Wall travels______ deep valleys, _____ deserts and______ mountains.
---Don’t climb the ladder. It’s broken. ---______
The dangerous building could fall down any time, but that’s a risk we’ll have to_____.
I need to buy a new MP4 and cellphone badly but I can’t afford_____.
The headquarter of the bank is in Guangzhou, but it has______ all over the country, even all over the world. A firms B .branches C .organizations D .basea
Is this the reason ______ at the meeting for his carelessness in his work?