a. (was sentenced to 10 years in prison by Russian in attempting to stop him from writing another book.)
b. (was sentenced to 10 years in prison by Russian in its attempt to stop him from writing another book.)
2. Because s.th, (the orbit to the Earth became XXX more and more, resulting from the discard of s.th.)
3. Just as......, so....
4. Despite its XXX, the satelite of Mars are so light that XXX finally slowed its orbit, thus dropping down to the surface.
5. Because of XXX, the grain produces in country A reduced to 1345 tons,(_______).
a. 45% less than those of country B.
b. 45% fewer than that of country B.