1.Many teenagers say they use the internet for the purpose of study.
A. aim
B. target
C. point
D. plan
2. Accordingly, a number of other methods have been employed.
A. Therefore
B. Afterwards
C. However
D. Furthermore
3. Gunpowder was used extensively in firearms prior to 1990.
A. in
B. around
C. from
D. before
4. Her death was a great grief to him and I doubt if he ever recovered afterwards.
A. got through
B. got by
C. got on
D. got over
5. He bought his house on the payment plan paying a certain amount of money each month.
A. piece
B. share
C. installment
D. part
答案：1.A 2. A 3. D 4.A 5. C