We should get Ben _______________ us some concert tickets when he goes to get his.a). to buyb). buyc). buyingd). bought

To correctly fill in the blank in the sentence provided, we need to analyze the options given in relation to the grammatical structure and meaning of the sentence.

1. Understanding the Sentence Context: The sentence is suggesting an action that Ben should perform in the future when he goes to get his concert tickets.

2. Options Analysis:

   • a) to buy: This option suggests a future intention and is grammatically correct in this context.
   • b) buy: This is not appropriate as it does not fit the structure of the sentence.
   • c) buying: This could potentially fit, but it does not convey the intended meaning as clearly as "to buy".
   • d) bought: This serves as the past tense and is not suitable for the future intention expressed.

3. Correct Answer Identification: The most suitable option to complete the sentence with the intended meaning is "to buy".

Final Answer

The complete sentence is: "We should get Ben to buy us some concert tickets when he goes to get his." Thus, the correct answer is a) to buy.