Select the appropriate option to improve the the sentence else select option 39 D 39 i e no imp...........

English ( Master) Sentence Improvement

Select the appropriate option to improve the the sentence else select option 'D' i.e. no improvement required.

I try to solve this problem at least for two hours.

am try to solve

have been trying to solve

tried to be solving

No improvement

Use present perfect continuous as the process of solving the problem started 2 hours ago (in the past) and still continues. Thus option B is correct.

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