7上Unit 1-Unit 4提优练习三一、单项选择（共15小题；每小题1分，计15分）( )1. Eric is not going to Nanjing by _ plane. He is taking _ train. A. a; / B. a; the C. / a D. the; a ( )2. -When were you born? -I was born _ August, 2004. A. on B. in C. at D. to( )3. Daniel and I _ in Class 2. _ are friends.A. am; They B. am; We C. are; We D. are; They( )4. Mum, _ at 6：30 tomorrow mor
