A、 Finding alternative fuels
B、 Emissions reduction.
C、 Less noisy aircrafts.
D、 Environmental protection.
答案:D
A、 Finding alternative fuels
B、 Emissions reduction.
C、 Less noisy aircrafts.
D、 Environmental protection.
答案:D
A. She jumped off a bridge to save a sick dog.
B. She was pulled out of the river by her pet dog.
C. She threw a dog from a bridge, claiming it could fly.
D. She was stopped by a dog from jumping off a bridge.
A. come
B. got
C. turned
D. gone
A. the other
B. the others
C. the rest
D. another
A. They can make us happy.
B. They can promote our image.
C. They are not necessary.
D. They are what we need.
A. Selling newspapers at her stand.
B. Standing on the street corner.
C. Walking on the street.
D. Gardening in her front yard.
A. A suspect shot a customer.
B. A police officer shot a suspect.
C. A customer shot a suspected thief.
D. Astore employee shot a suspected thief.
A. treated
B. have treated
C. had been treated
D. have been treated
A. The woman's boss.
B. The woman's boyfriend.
C. The woman's brother.
D. The woman's advisor.