Robert Frost is generally considered a regional poet whose subject matters mainly focus on the landscape and people in( ).
正确答案： D
本题解析：
美国作家中有很多人的作品都是有着重点关注的地区的，如， 马克 . 吐温的密西西比河流域;福克纳的南方体裁等等;弗罗斯特关注的是新英格兰。
Opposition leaders will be watching carefully to see how the Prime Minister ________ the crisis.
Now many major employers are beginning to demand _______ the completion of school
In the original test，all the animals in a test group are given a substance _______ half of them die
Nobody but you _______ what he said.
Some persons gain goal and direction from their tensions;others ________ under pressure.
That is the house _______ you can enjoy the scenery.
The teacher told us the fact _______.