If it ________ for the heavy rain then, we would have arrived here ahead of time.
_____the Internet is of great help, I don’t think it ‘s a good idea to spend too much time on it. A. If B. While C. Because D. As
It was a matter of________ would take the position.
In China, all the students work hard at school _________ going to university for higher education in the future.
Robert is said ___________ abroad, but I don’t know what country he studied in.
He made another wonderful discovery, ______ of great importance to science.