1. Soot can penetrate closed windows
make dirty
stick to
erode
enter
2. The mass media provide a powerful means of disseminating propaganda
recording
spreading
producing
collecting
3. Helen Keller, blind and deaf from an early age, develop her sense of smell so finely that she could identify by her personal odors
classify
communicate with
describe
recognize
4. His premature death at the age of 28 is great loss
violent
abrupt
too early
very mysterious
5. The check is attached to the letter
related
similar
fastened
next
6. The old man suffered from insomnia
severe pain
lack of food
lack of sleep
a severe kind of headache
7. The spy accomplished his mission
carried out
carried on
called off
thought about