You have to take a taxi home if you want to leave now. A. have to

The book ____ I bought at the bookstore yesterday is expensive.

Every month, scientists invent new gadgets and ____ to help us with our daily lives, and discover ways to make existing technology faster and better.

You never work more than you have to, _______?

Alaska ______________.

I haven’t been to the dentist for six months.

The last time ________________________________________________

The chemistry book __________ was a little expensive.

“I’ll drive you to the station. I insist,” Peter said to Linda.

Peter insisted on ____.

I'll wait until he (finish) ______ his novel.