3 Circle the underlined part that needs correction in each of the following questions.
1. The wine should have been opened about three hours before it is used
A
B
C
D
2. All travel arrangements must complete by June 17th
A
B
C D
3. Clothes which have been bought during the sale cannot exchange.
A
B
C
D
4. Those books should be taken back to the library five days ago
D
A
B
C