I_______a research since last week. I will finish it this Friday.

A. so that

B. due to

C. in spite of

D. because

A. Made

B. Have made

C. Having make

D. Having made

A. forests

B. soil

C. water

D. fossil fuels

A. I come from a city that located in the southern part of the country.

B. I come from a city locating in the southern part of the country.

C. I come from a city located in the southern part of the country.

D. I come from a city has located in the southern part of the country.

A. cheat

B. cheated

D. being cheated

A. Neil Amstrong was the first man have walked on the moon.

B. Neil Amstrong was the first man walked on the moon.

C. Neil Amstrong was the first man walking on the moon.

D. Neil Amstrong was the first man to walk on the moon.

A. talking

B. talkative

C. talked

D. is talked