—What’s the matter with Tim?
—Oh, Tim’s cellphone was left in a taxi accidentally, never ____ again.

_____ what would happen，none of them could find a way out.

With more forests _____being destroyed, huge _____ of good earth _____ washed away each year.

I suggested that the problem _____as soon as possible.

When ________ to the market, these products were very popular.

There are many talented actors out there just waiting _______.

Tom, look at your shirt! It requires ________.

He feels it dangerous for a girl to be out late at night, so he won’t have his daughter _______ home late.

The students ________ from the whole class are expected to bring us honor in this school sport meeting.

When______help, one often says “Thank you”. or “It’s kind of you”.