单项选择题

The entire morale among the employees in Factory B ______ until now ever since the introduction of our new flexible working hour system.

(A) were boosted
(B) had been boosted
(C) boosting
(D) has been boosted
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单项选择题
It is the excellent screenplay and superb cast of characters that make the movie so
(A) excitedly
(B) excitement
(C) exciting
(D) excited
单项选择题
The conference organizer has ______ about the agenda but cannot provide help for hotel reservations.
(A) inform
(B) informed
(C) to inform
(D) information
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