One theory this phenomenon acupuncture reduces pain suggests that acupuncture_____ pain signals from reaching the brain.

The murderer was brought in, with his hands ________ behind his back.

We ________ on this project for four hours. Let’s have a rest.[ ]

Jane was elected chairman of the committee. This is the first time that a woman ______ to the post.[ ]

How many students are there in your class — Forty，and ________ of us are girls.