单项选择题
A．Open the gift immediately in front of the giver. B．Wrap the gift carefully. C．Express the appreciation for the gift you receive. D．Buying a present card to avoid the trouble in shopping.
A．respond to the owners" order B．respond to a sound device C．act on the owners" instructions D．act on the trainers" order
A．people who attend their concerts need them B．they want to make extra money C．there are still people who prefer CDs to other formats D．people who fail to attend their concerts need them