Select the correct auxiliary verb to complete the sentence: "They ...

[ Subject Verb Agreement and Coordinating Conjunctions ]

Select the correct auxiliary verb to complete the sentence: “They ______ been studying for hours.”

A. has

B. have

C. is

D. was

Select your answer:

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Which is the COMPOUND SENTENCE?

A. I play the piano every night.

B. My mom, my dad and my brother eat a lot.

C. I love puppies, so my parents adopted one for my birthday.

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It’s important that you pay attention to the lecture.

A. You must pay attention to the lecture.

B. You shouldn’t pay attention to the lecture.

C. You can pay attention to the lecture.

D. You needn’t pay attention to the lecture.