— Mom, can I watch T'V now?— No． You ________ tidy your room first．
A．can B．may
C．must D．coulcl
— Nancy, which dress do you like better, the yellow one _________ the blue one?— The blue one．
A．or B．so
C．and D．but
On March 15, 2016, Lee Se-dol (李世时) _________ by Google’s AI in the final match．
A．beat B．beats
C．was beaten D．is beaten
— Excuse me, does Maria live here?— No．She _________ to London last winter．
A．moves B．moved
C．will move D．has moved
— Do you know Mr． Smith?— Yes． I ___________ him since 2008．
A．know B．knew
C．have known D．will know
John's mother always asks him__________ his homework at sclool．
A．firtish B．to finish
C．finishing D．finished
