第三课时选择适当的be动词填空。amisare waswerewasnt 1. How old _ you, Linda? I _ twelve years old now.2. Jack _ a good student now, but one year ago he .3. There _ a girl in the classroom just now. Who is she?4. Where _ my shoes, Mom? They _ under the bed last night. But now they _ not there.5. We _ in Australia at this time last year.答案:1. are; am2. is; wasnt3. was 4. are; were; are5. were