I delayed _______ your letter because I had been away for a week.
| A．answer | B．answering | C．writing | D．to post |
Nothing he did was helpful to solve this problem, _______?
| A．didn’t he | B．was it | C．wasn’t it | D．did he |
_______ the paintings of da Vinci, the Louvre Museum has more than 6,000 other European paintings, _______ from the 13th century to the 19th century.
| A．Except; ranging | B．Besides, ranged | C．Except; ranged | D．Besides; ranging |
The church tower, which will be open to tourists soon. The work is almost finished.
| A．has restored | B．has been restored | C．is restoring | D．is being restored |
Tom was the second to reach the top of the mountain, Mike _______ the first.
| A．was | B．is | C．being | D．has been |
This painting is so valuable that it is rather difficult to calculate _______ its price would be if the museum _______ to sell it.
| A．how much; would want | B．what; wanted |
| C．what; wants | D．how much; wants |