If and Whether Practice

I'm unsure ____ to accept the job offer without knowing more about the company's future plans.

• if

• whether

____ she answers the phone, could you ask her to call me back? I have an urgent message for her.

• if

• whether

____ the shop has the new book in stock, I'd like to purchase a copy during my visit tomorrow.

• If

• Whether

She asked ____ the new product is available in different colors.

• if

• whether

____ you know the way to the nearest post office, could you kindly provide me with directions?

• If

• Whether

I'm not sure if we should go on a picnic as planned ____ the weather is bad tomorrow.

• if

• whether

I haven't decided ____ to spend the weekend hiking in the mountains or relaxing at home with a good book.

• if

• whether

____ you have a moment, could you please help me with carrying these boxes to the car?

• if

• whether

We need to figure out ____ to go to the beach or visit the countryside for our summer vacation.

• if

• whether

He wonders ____ you have finalized the details for the upcoming event.

• if

• whether