It’s _______ hot here. We can’t stay here for a long time.
Microblog is a platform ________ people can express their thoughts and communicate with each other by sending posts.
It was not until 1938 _________ the first colour TV programme was broadcast.
Mr. John was so humorous that we had a good laugh ______ the meal.
I don’t think it easy, even if we work hard, ______ the South Korea and the North Korea to sit down to talk at present.
No student ______ go out of the school campus after 10:00 at night without permission according to the school regulations.