19. The crew must take a rest because they _______ from a long trip.
(A) have just been returning (B) have just been returned
(C) just return (D) have just returned
23. Physical therapists use their professional knowledge to assist you _______ supportive devices like a
crutch or cane.
(A) and use (B) to use (C) use (D) in using
26. If you would like to get a refund for a _______ product, you have to bring in the product and its receipt.
(A) affected (B) fault (C) defected (D) flawed
35. “Have you ever been to the Grand Canyon?” Choose the best response.
(A) I have. Never I had seen such a wonder. (B) I have. Never had I seen such a wonder.
(C) I have. I haven’t ever seen such a wonder. (D) I have. Ever have I seen such a wonder.
36. The babies of lions and bears are called cubs, but a person or a monkey _______ has just been born is
called a baby.
(A) that (B) who (C) which (D) either
40. A series of experiments to test the new drug _______ carried out, but so far it still can’t prove to be an
effective drug.
(A) was (B) were (C) has been (D) have been
46. Because there wasn’t sufficient time, data precision and accuracy were barely _______ and reported in
carbon monitoring.
(A) acquired (B) accessed (C) assessed (D) assumed
47. Chiufen is an old gold-mining town that _______ economically when the gold ran out in the middle of
the last century.
(A) dropped (B) declined (C) fell (D) disappeared