Help to complete the sentence: Why ... your credit card?

English as a Second Language English Vocabulary, Grammar and Idioms
1

I have a sentence:

Why ______ your credit card?

The answers:

a) don’t use
b) not use
c) not to use
d) not using

Do you have any idea what the correct answer is and why?

Thanks

2

The correct answer is “Why not use your credit card?” because it ‘why not + infinitive’ is a commonly pattern. It’s one way the ‘bare infinitive’ can be used.[YSaerTTEW443543]

TOEFL listening discussions: An assistant lecturer talking to a new student[YSaerTTEW443543]

3

Thank you very much, Mr. Torsten!

4

Sorry for the interrupting but I wonder whether the structure is the same as Why don’t you…? Thanks

5

‘Why don’t you’ refers to a specific person while ‘why not…’ can refer to anyone.[YSaerTTEW443543]

TOEIC listening, question-response: How soon can you start working for us?[YSaerTTEW443543]