[ Grammar ]
(Tom / participate) _________________________ in “Green Summer” program before?
A. Has Tom participate
B. Tom has participated
C. Did Tom participate
D. Has Tom participated
Select your answer:

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Vocabulary and Grammar › ViewMy friend is not very interesting. Many people say he is _____.
A. honest
B. honesty
C. bored
D. boring
Grammar › View
He went on vacation this summer too … he had a lot of financial problems.
A. although
B. and
C. since
