17. It is necessary that all employees _____ the safety training before starting their new roles.
(A) to complete
(B) complete
(C) be complete
(D) completed

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統計： A(1), B(3), C(1), D(2), E(0) #3442635

詳解 (共 2 筆)

#6557103
17. It is necessary...
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#7421449
所以這題考的用法是it is necessary that sb should 加原v
所以我們選complete
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