The equipment _____ out of order, the experiment has to be put off.

The little girl is ignorant _____ the basic rules of English grammar。

The manager gave her his _____ that the complaint would be investigated.

To begin some activity is to _____ doing it.

He gave the order that nothing _____ until the police arrived.

As far as she is concerned, one piece of music is very much like

Every man and every woman working here _____ with me.

Edison tested more than one thousand materials to see if they could _____ electric ; current and glow.

In most countries, the metric system has been _____ for all measurement.

Under no circumstances _____ anything that will benefit ourselves but at the same time harm the interests of。