Last night, I _________ to Islamabad along with some friends.

Explanation

The correct choice is B: 'went.' This is the simple past tense of 'go,' which correctly matches the past time reference 'last night.' Option A, 'have gone,' uses the present perfect tense, which is not suitable here because it implies a connection to the present, whereas 'last night' specifies a definite past time. Option C, 'am gone,' is grammatically incorrect since 'am' cannot be combined with 'gone.' Option D, 'am going,' is present continuous tense, indicating an ongoing action, which conflicts with the past time indicated. Option E, 'gone,' alone is incomplete and incorrect in this context.