( ) These green trees. A. is B. are C. was
—How many maths ________ do you have a week? —We have five.A．class B．classes C．classrooms
选择对应答句。(16分)
Baby pigs are called ________．A．kittens B．piglets C．ducklings
She ________ two baby cats.A．have B．has C．is
—________ they run?—Yes，they can.A．Are B．Do C．Can
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