—What has made John look like lacking sleep?
—________ he had to prepare for the coming exam and stayed up last night.
| A．For | B．Because |
| C．That | D．What |
_______is no doubt that the Dallas Mavericks will defeat the Washington Wizards in the next game?
| A．It | B．As | C．That | D．There |
He’s got himself into a dangerous situation ____ he is likely to lose control over the plane.
| A．where | B．which | C．while | D．why |
E-mail, as well as telephone, ______ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．played |
It’s high time you had your hair cut; it’s getting _____.
| A．too much long | B．much too long |
| C．long too much | D．too long much |
Only when the war was over ____ to his home town.
| A．did the young soldier return |
| B．the young soldier returned |
| C．returned the young soldier |
| D．the young soldier did return |