It’s a difficult problem. It needs ........ about carefully. ...

[ Grammar ]

It’s a difficult problem. It needs …….. about carefully.

A. think

B. to think

C. thinking

Select your answer:

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Prepositions Of Place Preposition Conditional Types Regular Plural Nouns Adverb of Manner Synonyms Apologizing Verbs, Tenses, and Vocabulary Tenses Practice

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Which sentence shows an example of a correlative conjunction?
A. Mrs. Nelson eats apples and carrots every day.
B. Either you go, or I will.
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Choose the correct option to complete this PAST CONTINUOUS sentence: “She … writing a book.”

A. Was

B. Is

C. Were

D. Did