Certainly, It's worth .................... the thesis.

There .................... only one place in the whole of England where it .................... legal to drive on the right.

A log grabber has a long arm.................. which stretches out to pick up logs.

Eli Whitney's milling machine remained unchanged for a century and a half because ........... was so efficient.

Well, I'm interested in .................... English

Clipper ships were the swiftest sailing ships that.................. to sea and the most beautiful.

There were signs everywhere .................... people too keep out of the grass in the park.

It is very difficult .................... a twin from the other.