They _____ ____ _____ tomorrow.
-
will, traveling
-
will, be, traveling
-
will, been, travel
-
will have, been
B
Correct answer
Explanation
The future continuous tense 'will be traveling' describes an action that will be in progress at a specific time in the future (tomorrow). Option A is missing the auxiliary verb 'be', while Option C incorrectly uses 'been' (requires 'have'), and Option D uses future perfect instead of continuous.