高中英语其他体裁阅读单选题

“May I borrow your paper?” “ ______.”

A．By all means	B．Never mind
C．You are welcome	D．Don’t mention it

The comments the expert made ______ stock-market bothered him greatly, ______ him not fall asleep all night.

A．concerning, making	B．be concerned, which made
C．concerned, making	D．to be concerning, made