Question

Fill appropriate verb form from the given options:
Tom is on holiday and he is spending his money very quickly. If he continues like this, _______________ (he/spend) all his money before the end of his holiday.

• A. he's spent
  
• B. he'd spend
  
• C. he'll have spent
  
• D. he spent
  

Answer 1

The correct option is C he'll have spent

The future perfect is a verb tense used for actions that will be completed before some other point in the future. It is for talking about an action that will be completed between now and some point in the future. Here, the action of spending the money will be completed before a specific point of end of holiday. Hence, Option C is correct.

The rest of the options do not express this condition. They mention actions that have already happened (option D), actions that have just happened in the present (option A) or actions that are hypothetical (option B).

Hence these options are incorrect.