I really enjoyed your talk, ________ there were some parts I didn’t understand.
| A．because | B．unless | C．though | D．after |
－I think teenagers should not be allowed to get car licenses.
－I agree. They are not _______.
| A．serious enough | B．something serious |
| C．nothing serious | D．enough serious |
－I want to be a computer manager.
－________. I am studying computer science very hard.
| A．So am I | B．So I am | C．So I do | D．So do I |
－I think students should be allowed _______ homework with friends.
－I disagree. They talk instead of ________ homework.
| A．do, doing | B．to do, to do | C．to do, doing | D．doing, to do |
Ｉdidn’t go to bed _______ I finish my homework.
| A．after | B．when | C．if | D．until |
－Can you go to school in other clothes?
－No. We _______ to go into the school unless we are in school uniforms.
| A．allow | B．are allowed | C．are not allowed | D．allowed |