1 . At least 20 people lost their lives in the air crash and, according to the hospital, ___________was the pilot, who died soon after he was sent to the hospital.

A．among which

B．among whom

C．among them

D．among what

2 . Grass skiing is a rising form of entertainment, popular with young people, ___________focus is on the adventurous and enjoyable form of a sports activity.

A．who

B．when

C．where

D．whose

3 . She gave another piece of advice,         I think is of great help to the research work.

A．that

B．who

C．what

D．which

4 . Pumpkins are believed to have originated in North America, _______ seeds from related plants have been found dating back to 7,000 B.C.

A．as

B．which

C．where

D．whose

5 . Each time she is in despair, she often receives a note from her parents, ________ reads “Don’t lose heart and we love you so much”.

A．who

B．that

C．where

D．which

6 . China successfully launched a moon exploration satellite in October this year, ________ encourages the whole nation.

A．when

B．which

C．though

D．what

7 . The Hymers took part in an experiment called The 1940s House,         purpose was to see if a modern-day family would be capable of surviving in the 1940s.

A．when

B．where

C．which

D．whose

8 . Scott’s team reached the Pole on 17 January 1912,         , soon, they were shocked to come across the Norwegian flag put by Amundsen’s team.

A．when

B．where

C．which

D．that

9 . The new series about education is set on a farm,         has been converted into a school for one class of difficult students.

A．that

B．where

C．which

D．what

10 . There seems to be an intimate connection between learning and motivation, two different facets of what dopamine does, says Vanessa Ruta, ______ published the findings in Nature Neuroscience.

A．as

B．that

C．which

D．who