Variant 1 You could have come first and won the race if you … faster

28. One advantage soft contact lenses have over hard ones is that they ...

A) are made of natural products. B) aren't as expensive. C) are completely flexible. D) come in two varieties.

29. We learn from the passage that hard plastic lenses ...

A) do not provide clear vision. B) are initially uncomfortable. C) are water absorbent. D) may break if dropped.

30. We can conclude from the passage that a person wearing soft plastic lenses ...

A) ought to use them for short periods. B) should avoid using aerosol sprays.

C) doesn't need to have them checked frequently. D) won't have any difficulty seeing clearly

VARIANT 23

1. Books differ from magazines and newspapers because they are not published on a … schedule.

A) month B) months` C) month`s D) monthly

2. The ease of solving a jigsaw puzzle depends on the number of pieces, their … and shadings, and the design of the picture.

A) shapeless B) shapes C) shaped D) shapely