Evidence has been found through years of study __________ children’s early sleeping problems are likely to continue when they grow up.

his surprise, his speech at themeeting ________ the students silent

Spokesman has____ that there is no Chinese crew on theship hijacked by Somali pirates.[ ]

My chest _____ when I take a deep breath, doctor

what do you think of the job of being a nurse—In my opinion, it ____ be difficult sometimes though it seems easy.