The hard life in the mountainous area he has adapted to ____ a real challenge to anyone.
______ the Chinese have been to Beijing.
_____ I shouted at the top of my voice _____ turn his head.
Not only I but also Jane and Mary _____ tired of having one examination after another.
--What is the model plane like? --Well, the wings of the plane are___________ of its body.
—Do you regret spending 500 dollars on the overcoat? —No,I would have paid _________ if the shop owner had insisted.