These tickets for the performance are （ ） until the end of the month．

—Shall I inform him of the change of the schedule right now? —I am afraid you （ ）, in case he comes late for the meeting.

She heard a continual strange noise coming from the next room, her heart （ ） fast.

The weather was good except for an （ ） shower.

If Peter had given up his part-time job, he （ ） the final exam.

Some cities have passed laws that allow coal and oil_____only if their sulfur content is low.

—Do you like the material? —Yes, it （ ） very soft.

Peter was （ ） that there should be no misunderstanding on that point.

Richard is American, John is British—they have different （ ）.

If you are interested in this position, you can _____ to our personnel department for an interview.

So, （ ）, we’ve got to try further funding.

The degree （ ） you maintain your mental health may depend on certain simple environmental factors.