你想知道教室里有多少个灯,你可以说:A.How many lights are there? B. Are these lights?
My uncle is a teacher.He ________ me Chinese. A.teaches B.teach C.teaching
She is ________. A.a engineerB.engineer C.an engineer
She sells things.She is a ________. A.teacher B.salesperson C.doctor
She is an actress ________ TV. A.inB.onC.for
If you enjoy math,you can ________ an accountant. A.doB.areC.be