35. I’ve already told you that I’m going to buy it, ________.

A. how much does it cost　　　　　　　　　　　　　　 B. no matter how it costs

　however does it cost much　　　　　　　　　　 D. however much it costs

34. They pretended ________ hard when their boss passed them.

A. to work　　　　　　　　　　 B. being worked　　 　to be working　　　　 D. working

33. - Mary, let’s go to the lecture by Hawking, which is said to be very interesting.

　 - I’d like to, but I ________ finish the report first.

A. can　　　　　　　　　　 B. may　　　　　　　　　 　must　　　　　　　　　　　 D. shall