He never said that he was good at mathematics, ?
| A．was he |
| B．awns’t he |
| C．did he |
| D．didn’t he |
—— The experiment is of particular importance.
—— I see. We won’t carry on with it _______ we can get the good equipment.
| A．until | B．unless | C．whether | D．after |
The Internet and the effect _______ brought about did a lot of good to our daily life and work.
| A．that | B．what | C．which | D．It |
Everybody went to the opening ceremony of the film festival——_______ Francisco, who has no interest in anything but sports.
| A．but | B．only | C．even | D．besides |
In the current global economic crisis, China, though _______to some degree, is undoubtedly a country recovering the most rapidly from it according to some statistics.
| A．having affected | B．has been affected |
| C．affected | D．has affected |
_______ what would happen, none of them could find a way out.
| A．Left wondering | B．Having left wondering |
| C．Leaving to wonder | D．Having left to wonder |