—The experiment is of particular importance.
—I see. We will carry on with it ________ we can get enough money.
| A．unless | B．though | C．whether | D．until |
23. A man is being questioned in relation to the ________ murder last night.
| A．advised | B．attended | C．attempted | D．admitted |
I’m glad you told me about yesterday’s show being cancelled. Otherwise I _____ all the way for nothing.
| A．travelled | B．had travelled | C．would travel | D．would have traveled |
We had to spend three more hours waiting in ______cafe at the airport because _______ flight was delayed.
| A．a; the | B．不填; the | C．the; 不填 | D．a; a |
Only after my friend came .
| A．did the computer repair | B．he repaired the computer |
| C．was the computer repaired | D．the computer was repaired |
There is a popular view in cities, strangers are less likely to help an elderly person.
| A．that | B．whether | C．why | D．how |