He kept yawning in class this morning. That is _____ he stayed up late doing his homework last night.
| A．why | B．how | C．because | D．whether |
Against ____advice from his friends, he insisted ____alone at the rush hour.
| A．a; on traveling | B．the; to travel | C．the; on traveling | D．at; to travel |
–Can I _________, sir?
---Yes, please. Two dinks.
| A．order you | B．have your order | C．obey your order | D．order |
So far the young man hasn’t had any success; ______ he will keep trying.
| A．whenever | B．no matter | C．wherever | D．however |
–Excuse me, Madame. Is this plane _____take off soon?
---Oh, yes. In five minutes.
| A．about to | B．starting to | C．beginning to | D．to |
_____for his expert advice, he was able to help a great number of people with their personal affairs.
| A．Being known | B．Having known | C．Well known | D．Knowing |