Once Johnny starts painting a picture, he won't stop until it ____. (2018)
A. had been finished
B. was finished
C. is finished
D. will be finished
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I came across this old book while I ____ my room. (2018)
A. clean
B. will clean
C. have cleaned
D. was cleaning
Johnson will phone his mother as soon as he ____ in Kunming. (2017)
A. arrived
B. arrives
C. will arrive
D. is arriving
A museum ____ in the city center next year. (2017)
A. will be built
B. will build
C. was built
D. built
When Anna ____ the room, a group of young men were taking eagerly round the table. (2017)
A. enters
B. has entered
C. was entering
D. entered
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