Question

Choose the verb in the appropriate form:
Tomorrow afternoon, we're going to play tennis from 3 o'clock until 4:30.

So at 4 o'clock, ___________________ (we/play) tennis.

• A. we've played
  
• B. we'll be playing
  
• C. we played
  
• D. we'd play
  

Answer 1

The correct option is B we'll be playing

The future continuous tense, sometimes also referred to as the future progressive tense, is a verb tense that indicates that something will occur in the future and continue for an expected length of time, here, playing tennis until 4:30. It is formed using the construction will + be + the present participle (the root verb + -ing). 'We will be playing' (or we'll be playing) is the future continuous tense of the verb 'to play'. Hence, Option B is correct.

The rest of the options do not express this condition. They either mention actions that have already happened (options A and C) or actions that are hypothetical/unreal (option D).

Hence these options are incorrect.