Hi， Bruce． My eraser is missing． May I use yours？
_______， here you are． I am not using it now．（ ）
A．Of course notB．No way
C．Go ahead
The telephone ______ by Alexander Graham Bell in 1876．（ ）
A．was inventedB．is invented
C．invented
Marcus is our foreign teacher．He _______ in our school for two years．（ ）
A．wasB．will beC．has been
Look!The man _____ be Mr．Black．He's always standing there at this time every day．（ ）
A．mustB．can'tC．mustn't
Going hiking with a group of people makes me _________．（ ）
A．relaxingB．to relaxC．relax
How do you learn English？
_______ listening to tapes．（ ）
A．ByB．WithC．For