单项选择题
M: Sorry, madam. I’m afraid Diana is busy the whole afternoon. W: But Diana always does my hair.
A. She is busy at the moment. B. She is Diana’s friend. C. She has an appointment with Diana. D. She wants Diana to do her hair.
A. through its reduced ticket prices B. through its extensive network of partners C. by providing convenient flight schedules D. by offering excellent services on board
A. can be found in any library B. can be read directly from the Internet C. can be read by any one who has a computer D. can be read when special software is installed