[单项选择]I was very sleepy. I tried ______ my eyes open but I couldn't.
A. keeping
B. having kept
C. to have kept
D. to keep

[单项选择]I was very sleepy. I tried ______ my eyes open but I couldn't.


A. keeping
B. having kept
C. to have kept
D. to keep

[单项选择]I tried very hard to persuade him to join our group but I met with a________ refusal.
A. flat
B. dull
C. blank
D. frank

[单项选择]The doctors have tried very hard rescuing from the vital brain damage, but all their efforts went __________.
A. in vain
B. in no way
C. without effect
D. without fail

[单项选择]1 tried very hard to persuade her to join our study group but I met with flat______.
A. decline
B. rejection
C. refusal
D. refutation

[单项选择]Man: Why is it that, whenever I open my mailbox, I pull out letters addressed to the previous tenants of this apartment
Woman: Tell the manager and ask him to forward the letters.
Question: What does the woman suggest
A. Mail the letters to the manager.
B. Have the manager take care of the problem.
C. Forward the letters to her apartment.
D. Talk with the previous tenants.

[单项选择]He tried very hard to ______ the authorities of his capabilities and loyalty, only to find that the more he tried, the less they believed him.
A. tell
B. show
C. convince
D. encourage

[单项选择]

My eyes and head ache when I work at my computer for a long time. What can I do
VisionIt could just be your eyes. Make sure that you’ve had them checked and that you’re wearing any necessary corrective lenses.
Screen Glare The light you read by may be too bright for your computer screen. Try to dim the light, and if you need to, get a desk lamp for other work. Also, if possible, move your computer so you aren’t directly underneath a light fixture.
Screen and Head Position
You shouldn’t bend your neck when you read from the screen. That can cause headaches. Your eyeline should be 5 cm to 8 cm below the top of the monitor. The screen should be about an arm’s length away.   

Which is the best title of the passage（）
A. How to protect your eyesight.
B. How to choose your computer.
C. A few tips for computer users.
D. Eye trouble and headache.

[单项选择]I have my eyes tested anti the report says that my _______ is perfect.
A. outlook
B. vision
C. horizon
D. perspective

[单项选择]I had my eyes tested and the report says that my ______ is perfect.
A. outlook
B. vision
C. horizon
D. perspective