25.I was about to leave for work ______the telephone rang.
| A．as | B．until | C．while | D．when |
—Reading is the best way to pass time on the train.
— , I never go traveling without a book.
| A．You are joking | B．That's true |
| C．I don't think so | D．It sounds like fun |
Though they hadn’t met for many years, they _____ each other at first sight.
| A．realized | B．recognized |
| C．regretted | D．remembered |
Hearing the funny joke, all the audiences burst ________.
| A．into laughing | B．out laughing |
| C．out laughter | D．into tears |
----Shall I give you a ride as you live so far away?
----Thank you._________
| A．It couldn’t be better | B．Of course you can |
| C．So what? | D．It’s up to you |
The growing speed of a plant is influenced by a number of factors, _____are beyond our control.
| A．most of them | B．most of which |
| C．most of what | D．most of that |