Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.
It’s ______ that the boy break away from the bad habit of sleeping at class.
Attention, please. This is the time capsule to the Anti-Japanese War. Please take ____ and ____ your belt. It’s leaving.
The capsule began swing gently sideways as we lay _______.
Sorry, dear. It’s my _____to have you take tablets by ____.
To _____, in the school art festival next week, the quiet boy will have an opportunity to attract public attention.