---Why do you suggest Gulin?
---I believe_____ beauty of ____ nature there will make _____ excellent impression upon the tourists.
| A．a, the, an | B．the, the, an | C．the, /, the | D．the, /, an |
--- Can you find me _______ symbol of China? --- ______ Great Wall.
| A．不填, 不填 | B． a, A | C．a, The | D．不填, The |
Bob ________ with us together since he came to our school.
| A．have worked | B．has worked | C．worked | D．will work |
When I came into the teacher’s office, he ________ on the phone.
| A．was speaking | B．spoke | C．had been speaking | D．had spoken |
Tony decided to study abroad _______ he knew he would meet many difficulties.
| A．as if | B．because | C．unless | D．even if |
--- We want to sit at the table near the window.
--- I am sorry, but it _______ already.
| A．took | B．takes | C．has been taken | D．is taking |