My mother asks me _______TV before finishing my homework.
| A．not to watch | B．not watch |
| C．not watching | D．to watch |
---It’s 12 April today. Have they found any useful information about the plane's black box?
---Flight MH370? Yes, but it’s difficult to decide where the black box really is.
| A．still | B．ever |
| C．yet | D．never |
______ 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 |