The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.

What will Jack do on vacation? — He’ll go to Disneyland if he _________ enough time.

Lucy’s dress looked the same as mine but the price is _______mine.

I think _______ our duty to keep our environment clean and tidy.

The new station being built for the next Asian Games will be ________ the present one.