—Are there________birds in the trees?—Yes,there are.A.one B.any C.a
Tom ________ his homework on Sundays.A.doesn't do B.doesn't C.isn't do
________ mother is a doctor.A.She B.He C.Her
My uncle is a teacher.He ________ me Chinese.A.teaches B.teach C.teaching
She is ________.A.a engineer B.engineer C.an engineer
She sells things.She is a ________.A.teacher B.salesperson C.doctor