If we learn more about DNA, we ______ more diseases.
A.treat B.treats C.will treat D.were treating
James enjoys reading, and he ______ novels on his way to work on the subway every day.
A.read B.reads C.is reading D.will read
Wang Xuan is a famous computer scientist. He his research of laser typesetting in 1975.
A.start B.started C.is starting D.will start
—______do you usually have dinner?
—At about 6 p.m.
A.When B.Where C.Why D.How
The Amazon rainforest is_____ rainforest in the world.
A.large B.larger C.largest D.the largest
Many people like paper books more, ______ they are comfortable to read.
A.because B.and C.or D.so
