We are classmates. We must help .
| A．for each other | B．in each other |
| C．to each other | D．each other |
______ I have a quick word with you? Something important has happened.
| A．Must | B．Could | C．Would | D．Should |
The girl in black trousers _____often noticed ______the teachers’ office.
| A．are; entering into | B．are; entering |
| C．is; to enter into | D．is; to enter |
In those days, we had no phones, so we had to keep in touch ________ letters often.
| A．with | B．of | C．on | D．through |
--- Did you have a sound sleep last night?
--- Yes, never slept ________.
| A．better | B．best | C．badly | D．worse |
In my mind, no such_______ thing in our country as_______ Great Wall can represent the image and culture of China．
| A．a; the | B．a; / | C．/; the | D．/; / |