[ Tenses ]
You ___ very thoughtful. What ___ you ___ about?
A. looked / was / thinking
B. look / are / thinking
C. look / are / think
D. looking / are / thinking
E. have looked / had / thought
Select your answer:
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Grammar › ViewWhat is the form of a negative imperative sentence?
A. Don’t + future tense of the verb
B. Don’t + past tense of the verb
C. Don’t + present participle of the verb
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Tenses › View
I am really tired. I _____ all day.
A. worked
B. was working
C. have been working
D. had worked