单选题：_____ neither you nor your brother interested in swimming?A..

All we needa small piece of land where we can plant various kinds of fruit trees throughout the growing seasons of the year.A． areB．wasC．isD．were

The fact that she was foreign made ____difficult for her to geta job in that country. [ ]A. soB. muchC. thatD. it

They are good friends. _____ is no wonder that they know each other so well.[ ]A. This B. That C. There D. It

We feel ______ our duty to make our country a better place.[ ]A. it B. this C. thatD. one

I don't understand this question. I'd appreciate_____ if you could give me some help.[ ]A. thatB. itC. thisD. one