Jeans which ________ by Levi Strauss in 1850 ________ one of the most popular kinds of clothes in our present time. A. are first made / have been B. were first made / were C. were first mad
Jeans which ________ by Levi Strauss in 1850 ________ one of the most popular kinds of clothes in our present time.
A. are first made / have been
B. were first made / were
C. were first made / are
D. had been made / would be