Henry must have stayed up last night, ________ he looks so tired and sleepy.
| A．for | B．as | C．though | D．since |
The blues _____ a way for people to show ______ they are and ______ is in their mind.
| A．is, who, what | B．is, what, who | C．are, what, who | D．are, who, what |
I arrived late; I _____ the road to be so icy.
| A．wouldn't expect | B．haven't expected | C．hadn't expected | D．wasn't expecting |
Teachers should create an environment children are taught how to solve problems of learning by themselves.
| A．why | B．where | C．which | D．whose |
The car crashed into the back of a truck and the driver was trapped for about an
hourbeing taken to hospital.
| A．when | B．before | C．after | D．until |
that ,or one day you may come to be ashamed of what you have done.
| A．Stop doing | B．If you stop doing |
| C．If you don’t stop doing | D．You stop doing |