—Mum, what's the terrible noise? —It's Bob. He ____ the violin next door.

1. —Mum, what's the terrible noise?

—It's Bob. He ____ the violin next door.

A. practiced B. ispracticing C. waspracticing D. haspracticed

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单选题普通

1. —Peter, what are you doing?

—Oh, I_________a report about national heroes.

A. will write B. am writing C. wrote D. have written

单选题容易

2. The population of the world ____ still ____ now.

A. has; grown B. is; growing C. will; grow D. is; grown

单选题容易

3. 一 John, what's your older sister doing?

—She ____Beijing Opera in the club.

A. learns B. learned C. islearning D. waslearning

单选题容易