____computer games made his mother worried much.
A. Addicted to playing B. Being addicted to playing
C. Being addicted to play D. Addicted to play
___ with the size of the whole earth, the biggest ocean does not seem big at all.
A. Compare B. When comparing C. Comparing D. When compared
The theory he's stuck _____________ us that earthquake can be forecast.
A. to proves B. to prove C. to proving D. to proved
About one third of the population in Beijing and Shanghai_________ netizens, but in poorer areas, only three or four percent _________online.
A. is; is B. are; are C. are; is D. is; are
Professor Smith, along with his assistants, on the project day and night to meet the deadline.
A. work B. working C. is working D. are working
On each side of the street _______a lot of trees.
A. stands B. stand C. is standing D. are grown
