—We have a tight schedule, so you mustn't __________ staring at the ceiling. —No, I won't.
Parents are advised to put books __________ they are easily accessible to children .
Since 2012,when he __________,the soldier has been in the army.
He told me his story in private,__________ nobody else knew what had happened to him.
-- Sir,may I have two days off next week? -- __________ . You have two meetings to attend then.
It’s really __________ comfort to the professor that his son has been admitted to __________ Harvard University.