Topics: Tenses
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
Select your answer:
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Grammar › ViewHow many students _____ there in class on Monday?
A. was
B. are
C. were
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Identify the helping verb in the following sentence.
I have told you a thousand times to to call me Shirley!
___
A. thousand
B. times
C. have
D. told