While doing calculation for the project, the designers____a new solution to a geological problem.

The mother almost____when she learned that her son was shot dead.

The matter is not to be ____.

They will never reconcile themselves to____.

You’d better let me know as soon as there is a(n)____position in the branch office.

Urban congestion would greatly be relieved if the____charged on public transport were more reasonable.

We are convinced____ the righteousness of our cause.

According to the acoustics, continual exposure____ noise of high intensity would lead to loss of hearing.

The physicists propose that our attention____the use of special methods of thinking and acting.

Animal mothers are devoted to their young and____ them with love and discipline.