1. Humans can even die ì they drink_____ water?
a. contaminated
b. contamination
c. contaminant
d. contaminate
2. They were unable to run the telephone network_____.
a. economical
b. economically
c. economy
d. economic
3. If_____all morning before the tornado touched down.
a. was raining
b. has rained
c. rained
d. had rained
Loga
Sinh Học lớp 12
