( )1.A.This morning. ( )2.A.It was Thomas Edison. ( )3.A.About 1937. ( )4.A.Go swimming. ( )5.A.Mr. Black is at home. |
B.Yesterday morning. B.Thomas Edison did. B.About 1927. B.Go fishing. B.Mr. Black is busy. |
C.That morning. C.Thomas Edison. C.About 1977. C.Go shopping. C.Mr. Black is free. |