TOEFL Grammar - Choose the right word

ScottsEnglishScottsEnglish Administrator Posts: 1,060 admin ✭✭✭✭✭✭✭
____________________ antibiotics are useful in killing many strains of bacteria, viruses continue to be resistant to these same

antibiotics.

a. Unless
b. While
c. Until
d. Nevertheless

The correct answer is b, "while" .


Sign In or Register to comment.