[ Preposition & Gerund ]
Brian really has to work _______ improving his vocabulary.
A. in
B. at
C. on
D. for

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Adjectives (-ed / -ing) › ViewThunderstorms make me …………
A. scaring
B. scared
C. amazing
D. amazed
Articles & Quantifiers › View
______ Mr. Davis is the new company director.
A. The
B. X
C. A
D. Some
Coordinating Conjunctions › ViewHe is allergic to peanuts, _____ he loves peanut butter sandwiches.
A. yet
B. however
C. and
D. because
Vocabulary › View
Exacerbate
A. Complicate; make worse
B. Deflate; let down
C. Eat
