tom! Martin! Quit _________ trouble back there, or i'll send both of you to the principal's office!

lawyers frequently ______ use of print displays to explicate the details of a complicated case.

we have gained sufficient experience to _________ this problem.

ron does nothing but ________ and complain all the time.

see if you can change his ________ about coming with us.

the president visited the area to see the ______ at first hanD.

there is convincing evidence of a link between ________ to sun and skin cancer.

we might participate _______ special exhibitions, which we are doing right now.

we decided to ________ a short break at lunch.

after her promotion, janet spent the rest of the day looking like the ______ that ate the canary.