---What is the boy doing?---He _____________ happily.A swims B swam C has swum D is swimming
–What is in the box ? -- There ________ a pencil and two rubbers.
--__________the woman in black? --She’s my mother.
-- Your blouse is very nice. --____________________.
--__________ is your aunt ? --She’s a nurse.
—Are Nick and Sally two new students ? --_________________.