With a lot of work __________, our manager couldn’t spare time for a holiday.
| A．remained to be done | B．remaining to be done |
| C．remained being done | D．remaining to do |
--- How far can you run without stopping ?
--- ______________ . I’ve never tried.
| A．Don’t mention it. | B．That’s all right. | C．I have no idea. | D．Go ahead. |
The traffic on the main streets has a longer green signal than ______ on the small ones.
| A．one | B． this | C． that | D．it |
That is the only way we can imagine ______ the overuse of water in students’ bathrooms.
| A．reducing | B．to reduce | C．reduced | D． reduce |
What are you doing out of bed ? You’re _______ to be asleep.
| A．supposed | B．known | C． thought | D． considered |
people develop ________ preference for a particular style of learning at ______ early age and these preferences affect learning..
| A．a; an | B．a; 不填 | C．不填； the | D．the; an |