______ well prepared you are, you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.
— Oh, it __________ my younger sister. She was in my room at that moment.
| A．must have been | B．should have been | C．could have been | D．may have been |
— The National College Entrance Examination is drawing near. All we should do is make the best use of time.
— I can’t agree more. Every minute ________.
| A．needs | B．counts | C．acquires | D．urges |
The door and the windows were all closed and there was no ___________ of forced entry.
| A．scene | B．signal | C．sign | D．sight |
There is still much to discuss. We shall, ____________, return to this item at our next meeting.
| A．therefore | B．however | C．otherwise | D．briefly |
-- I didn't watch TV last night, but I did my homework.
--- __________.
| A．So did 1 | B．So it was with me | C．Neither did I | D．Nor did 1 |