What ________ they going to do tomorrow?
A．beB．areC．is
—________ are you going?
—This afternoon.
A．WhatB．WhereC．When
I want to buy ________ shoes.
A．a pair ofB．pair ofC．two pair of
I'm going to ________ a science teacher one day.
A．doB．beC．is
Amy ________ going to read books.
A．isn't B．aren't C．am not