The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.

Della was shocked not to find her car ______ she had parked it the night before and phoned the police immediately.

— Are you still thinking about the email Tony sent you yesterday？
— Oh，to tell the truth,that’s          makes me feel excited.

______ made her excited was _______ she had managed to win her house back.

．—I wonder whether the speaker has arrived.
— ________ ，I’ll check at the reception desk.

I hope ____ the little ____ I have been able to do has been of some use.

It is only _______ your heart is really in it _______ you can play your best.

After five hours’ drive, they arrived in _______ they thought was the place _______ they’d been dreaming of.

With Halloween approaching, there exists a real concern among parents and teachers __________ trick or treating will become a seriously anti-social activity.

When exposed to stress, in ________ form, all of us react both chemically and physically.