----Are you a teacher? ----No, but I ______ in Harbin No. 3 High School for 3 years.
#100004
A
had taught
B
has taught
C
teach
D
taught
推荐题目
--How did she get infected? --She ________the virus without any protection.
#100265
A
exposed to
B
had been exposed to
C
had exposed to
D
was exposed to
 The pen      well, so it ___ well. 
#101517
A
is written, is sold
B
is writing, is selling
C
is written, sells
D
writes, sells