A. Black. B. White. C. Blue. D. Red.
A. Because temperatures in white cars are lower. Because white makes a small car look bigger. C. Because white cars have a lower risk of crashes. D. Because white cars give the best value for money.
A. In the early 1980s. B. In the mid 1980s. C. In the early 1990s. D. In the mid 1990s.
A. encloses B. contains C. reserves D. invests
A. tied B. locked C. fastened D. closed
A. fiction B. function C. fraction D. fragment
A. in place of B. in terms of C. by means of D. by way of
A. chance B. effect C. occasion D. advantage
A. shatter B. articulate C. connect D. manage
A. Countries exposed to serious air pollution. B. The effects of air pollution on intelligence. C. Tendency of people’s learning performance. Different learning performance among cities.