A. constant
B. constantly
C. constants
D. constancy
A. relation
B. investment
C. productivity
D. renovation
A. has
B. which
C. want
D. been typed
A. When
B. are taken
C. combined
D. with
A. refers
B. directing
C. to achieve
D. in
A. If I hadn’t watched the television, I had heard the burglar alarm go off.
B. If I didn’t watch the television, I had heard the burglar alarm go off.
C. If I hadn’t watched the television, I would have heard the burglar alarm go off.
D. If I hadn’t watch the television, I would hear the burglar alarm go off.
A. He still suffers from a rare tropical disease which he contracted while he was in Africa.
B. He still suffers from a rare tropical disease which contracted while he was in Africa.
C. He suffers from a rare tropical disease which was contracted while he is in Africa.
D. He suffers from a rare tropical disease which he contracts while in Africa.
A. That book, what is very thick, belongs to my younger sister.
B. That book, that is very thick, belongs to my younger sister.
C. That book, which is very thick, belongs to my younger sister.
D. That book, which is very thick, belongs my younger sister.
A. enthusiasm
B. enthusiastic
C. enthusiastically
D. enthusiast
A. interesting
B. stressful
C. free
D. easy
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