Question

when the lights ___________ , that signal the end of the show
A. can be dimmed
B. dimmed
C. having dimmed
D. are dimmed​

Answer 1

Answer:

D ...are dimmed ......hope it will help

Answer 2

When the lights ___are dimmed________ , that signal the end of the show

Explanation:

• The given question when the lights, that signal the end of the show has two clauses in one sentence.  

• The first clause is: when the lights.  The second clause is: That signal the end of the show.

• In the second clause we have the verb 'signal'.  It is in the simple present tense.  

• Hence the first part of the sentence has to be in the present tense and thus Option D is the correct answer.

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