题目内容：
For each question, mark one letter (A, B or C) on your Answer Sheet.RSh Health Problems at the Keyboard
Do you use a keyboard in your job? If you (29)__________, you will at some time suffer "RSI", that is, pain in (30)__________arms. What can you do (31)__________
it? You can use an ice pack, or you could wear wrist supports (32)__________the ones that tennis players use.
Wrist supports (33) __________the wrist muscles warm', and prevent the injury from getting (34)__________You could also try' (35)__________one of the new Maltron "antiRSl" keyboards.
People who use a Maltron keyboard say they no (36)__________. get any pain. Using your "mouse" can also (37)__________problems. (38)__________you get a lot of pain in your " mouse hand", try using Logitech mouse. That's the one with the ball on the top rather (39)__________ underneath, so you just move your fingertips.
Finally, don't (40)__________ too long at your keyboard: take a break every half hour.
A．do
B．make
C．have
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