[ Grammar ]
Complete the sentences with the gerund or infinitive form of the verb in parentheses.
It’s difficult ____________________________ a ball while swimming at the same time. (throw)
A. to throw
B. throwing
Select your answer:

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Grammar › ViewShe … for two hours when she woke up to an explosion.
A. had slept
B. has slept
C. had been sleeping
Sentence Structure and Pronoun Antecedent › View
Identify the structure of the sentence below.
“Although Sarah was barren, she still bore Abraham a son.”
A. Simple
B. Compound
C. Complex
D. Compound Complex
