Question

Select the best option from the four alternatives given below

Unless he ________ this office, I will not say anything. 

Options

• left

• did not leave 

• leaves

• had left

Answer 1

Unless he leaves this office, I will not say anything. 

Explanation:

Conditional clauses can begin with unless. The verb forms we use the present simple in the unless-clause and shall, should, will, would, can, could, may or might in the main clause.