Experience of this kind in both the U.S. and Europe well before the Second World War.
| A．have conducted | B．have been conducted |
| C．had conducted | D．had been conducted |
__________ in the early 20th century, the school keeps on inspiring children's love of art.
| A．To found | B．Founding |
| C．Founded | D．Having founded |
I have heard a lot of good things about you __________ I came back from abroad.
| A．since | B．until |
| C．before | D．when |
__________ makes the book so extraordinary is the creative imagination of the writer.
| A．That | B．What |
| C．Who | D．Which |
—Have you paid? What's my share of the bill? —__________. It wasn't very much.
| A．Don't worry about it | B．It's my share |
| C．None of your business | D．It's up to you |
She showed the visitors around the museum, the construction ________ had taken more than three years.
| A．for which | B．with which |
| C．of which | D．to which |