A poet and artist____ coming to speak to us about Chinese literature and painting tomorrow afternoon.
A. is
B. are
C. was
D. were
Tom together with two of his classmates _____ new tricks on the skating ramp.
A. has tried
B. have tried
C. is trying
D. are trying
As you can see, the number of cars in roads ______ rising these days.
A. was keeping
B. keep
C. keeps
D. were keeping
With more forests being destroyed, huge quantities of good earth ______ each year.
A. is washing away
B. is being washed away
C. are washing away
D. are being washed away