the

Even under the best conditions, we couldn't finish in ________ three days.

Guests were ­­­­_________ into the few remaining rooms.

In the modern technological world the sea offers many ______ to help mankind survive.

The real trouble ____ their lack of confidence in their abilities

---Is the bookstore _______ now? ---No, it’s __________.

The wild flowers looked like a soft orange blanket ______ the desert.

After 15 years in the United States, he has finally decided to　　　　American citizenship.

Mary never turned _____at the cinema, although I waited over an hour.

We cannot judge a person simply on the ______ of this education.

The Web also provides an environment in which it is quick and easy to ______ ideas with colleagues.