Computers that once ---- up entire rooms ---- now small ...

[ Tenses ]

Computers that once —- up entire rooms —- now small enough to put on desktops and into wristwatches.

A. took / are

B. take / are

C. will take / are being

D. took / were

Select your answer:

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Other quiz:

Vocabulary › View

(adj) having limits; certain

A. definite

B. doubtful

C. vivid

D. reliable

Grammar › View

If you are at risk, your doctor will have you _____ your diet.

A. improve

B. improving

C. to improve

D. improved