When you________ me last night, I ________the piano.
A. were calling；was playing
B. were calling；played
C. called；played
D. called；was playing
（2017年安徽）I am surprised at the new look of my hometown, for it _____ a lot over the years.
A. changed B. changes C. will change D. has changed
The earth is a planet and it around the sun.
A. goes . B. go . C. will go . D. went
（2017年四川成都）--Did you hear someone knock at the door just now?
-- Sorry. I ______ to my friend on the phone.
A. was talking B. talked C. am talking
In the past few years there ________ great changes in my hometown.
A. had been B. have been
C. were D. are
Betty ___________ hard since last term. That’s why her exam results are so good!
A. has worked B. will work C. worked D. was working
