[ Tenses ]
They went home after they __________________ (finish) their work.
A. had finished
B. finish
C. finished
D. had finish
Select your answer:
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Modals › ViewCould you pass the salt, please?
A. Ability
B. Permission
C. Request
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Tenses › View
Much progress ________in telecommunications during World War I, but the basic technique________in the previous decades.
A. was achieved – had been developed
B. has been achieved – were developed
C. had been achieved – has been developed
D. would have been achieved – were developing