Standard English ConventionsHardVerb tense with 'since' and a continuing state
Standard English Conventions practice question
The observatory ____ its dome every clear night since it reopened in 2015.
Which choice completes the text so that it conforms to the conventions of Standard English?
- A. has openedCorrect
- B. opens
- C. opened
- D. is opening
Answer: A. has opened
A repeated action continuing from a past point to now takes the present perfect: 'has opened … since 2015'.
Why the other answers are wrong
- B. opens
- 'Opens … since 2015' is not standard.
- C. opened
- 'Opened' is simple past and doesn't reach the present.
- D. is opening
- 'Is opening … since' is not standard.
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