John and I ________ friends for eight years. We first got to know each other at a Christmas party. But we _______ each other a couple of times before that.
Healthy eating along with regular exercise _______ important for your health.
Experts suggest that teenagers _____ at least 30 minutes exercising, five times a week.
As ______ matter of fact, Mr. Wang is in _____charge of this special school at present.
She never tells a lie, ______ ? A doesn’t she B. didn’t she C. does she D. did she
The food smells delicious! I can’t wait ______ it.