He found it increasingly difficult to read, ______ his eyesight was beginning to fail.

They are up to their in work. A: eyeballs B: eyebrows C: eyelashes D: eyesight

Too much exposure to TV program will do great harm to the eyesight of children.

She is considered to be the most _________ in the office.( ) A: eyesight B: hardworking C: opener D: accountant

Poor eyesight willyou from military service. A: except B: enforce C: enhance D: exempt

Our eyesight will become poorer and poorer ______ we keep playing with phones. A: though B: unless C: if

12. He found it increasingly difficult to read, ____ his eyesight was beginning to fail. A: and B: for C: but D: or

19. Proper lightening is necessary for good eyesight, ________ human night vision can be temporarily damaged by extreme flashes of light.

Bats find insects in the dark of night with the help of ______. A: echoes B: eyesight C: sound waves D: none of the above

Can you ____ an insect having eight eyes and still having poor eyesight A: imagine B: suppose C: think D: expect