Space vehicles were launched into outer space_____search of another living planet.

_____ more time，he’ll make a first-class tennis player sooner or later.

—Where is my cell phone? I can’t find it. —Well, you ______ have put it somewhere.

I love thinking of new designs. It keeps my mind clear and active and fills my retired life with （ ）.

Patients’bills of rights require that they （ ） informed about their condition and about alternatives for treatment.

You needn’t introduce him to me. I’ve met him on several _____.

Mr. Jones, _____ life was once very hard, is now very successful in his business.

I stayed up all night _____ to find a new solution to the problem.

I can’t attend Mary’s birthday party next Sunday evening. （ ）, I thanked her for her kindly invitation.

The Vice Chairman of the conference is （ ） inviting the VIPs.

The defense computers calculate way to （ ） the enemy missiles.

Mass production has made （ ） the goods and services we want at a lower price.