30.
--- Is _______ finished?
---
Not yet. My dirty clothes are still soaking in the washing-machine.
A. something B. anything C. nothing D. everything
(1)
There are lots of great places in the
town which you can eat without 1. ______
spending too much because of I'm
always short of money! There are also some 2.
______
place where it costs a lot, so don't
forget to read the menu before going in. 3.
______
The first place is Gino's. It's an
Italian restaurant where serving the usual things 4. ______
like pizzas and spaghetti. It's
really cheaply and very friendly. Then there's 5.
______
Black's Bistro. This is a café which
is opened all day and you can eat anything 6.
______
there from toast, sandwiches, salads,
burgers and full meals. Again it's not 7.
______
expensive and is very popular with
young people. And finally, how about 8.
______
peppers? Go there if you want some
really nourishing Mexican food. Mexica 9.
______
food can be bit hot, but you can
choose dishes which are milder too. 10. ______
(2)
It is one thing to land science
instruments on Mars; however, it is quite 1. ______
another to establish a base for
humans to explore planet. Daytime temperatures 2.
______
can be rise above freezing, but,
because of the extremely thin atmosphere, 3.
______
the sun heat radiates back into
space. Even at the equator, the temperature 4.
______
drops -50℃ at night. In fact,
there is no ozone(臭氧) layer to keep out 5.
______
ultraviolet(紫外线的)radiation, and hardly
some oxygen for either breathing 6. ______
and burning conventional fuels. But
despite all these problems, scientists are 7. ______
currently working transport and
clothing for Mars and an artificial environment 8. ______
in which colonists could live. However,
the potential cost make the idea of 9.
______
human life on Mars nothing other than
a fantastic dream. 10. ______
练习四