The first snow didn't fall until February in our province this year，__________ was unexpected.
| A．it | B．which |
| C．that | D．what |
Mr. Smith is very kind-hearted as well as responsible, so you are __________ to have such a good teacher as he is.
| A．enthusiastic | B．considerate |
| C．genuine | D．fortunate |
The boat sank quickly but __________ everybody was rescued.
| A．generally | B．naturally |
| C．fortunately | D．strongly |
Alice was lucky enough and she was the only one of the girls in her school who __________ to France as an exchange student.
| A．have been sent | B．has been sent |
| C．was sent | D．were sent |
Mary is the only one of the teachers who __________ a little Chinese because she is one of my friends who __________ been to China.
| A．knows; have | B．knows; has |
| C．know; have | D．know; has |
Joan is one of the best writers who __________ published a lot of books.
| A．has | B．have |
| C．have been | D．are |