－Hello, Jack. How are you doing?
－__________.
| A．Reading a magazine | B．OK | C．That’s all right | D．It’s nice |
—______ they ______ baseball?—No，they aren't.
| A．Do，play | B．Are，play | C．Are，playing | D．Does，play |
—Where are Jeff and Jack?—They _______ in the river.
| A．are taking a walk | B．are swiming |
| C．are swimming | D．are playing basketball |
—Is Paul playing football now? —______．He's playing basketball.
| A．Yes，he is | B．No，he isn't | C．Yes，he does | D．No，he doesn't |
Look！The boys are swimming in the _______．
| A．pool | B．restaurant | C．zoo | D．library |
—Where’s Mike?—He ________ newspapers at home.
| A．read | B．reading | C．is reading | D．reads |