1 . Our neighbor offered to look after our baby while we were away, _______ was very kind of her.

A．it

B．that

C．which

D．such

2 . 阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确式。

Last week,our yearly school sports meeting     1    (hold) and the students of our class took     2    active part in it.On the first day,we watched the impressive opening ceremony    3    (perform) by energetic teachers and students.Soon,the games formally began.Some of my classmates ran to the track to cheer for the     4    （athlete）while others remained    5    (seat),watching them from a distance.I was     6    (excite) because I would compete     7     the 100-meter dash with my classmates cheering.Unfortunately,I fell on the ground,     8     (miss) the chance to win.What a pity!Although I failed,I was still looking forward to a     9     (good) performance the next day.However,as a result of the rain,we had to put off the sports meeting,     10    made us disappointed.

3 . Ted came for the weekend wearing only some shorts and a T-shirt，________ is a stupid thing to do in such weather.(2011·全国Ⅱ)

A．this

B．that

C．what

D．which

4 . （2016·浙江）Scientists have advanced many theories about why human beings cry tears, none of ________has been proved.

A．whom	B．which
C．what	D．that

5 . He wrote many children’ s books, nearly half of _______were published in the 1990s.

A．whom	B．which
C．them	D．that

6 . The Science Museum, ________ we visited during a recent trip to Britain, is one of London’s tourist attractions.

A．which

B．what

C．that

D．where

7 . It is the third time that she has won the race, ________ has surprised us all.

A．that	B．where
C．which	D．what

8 . He made another wonderful discovery, ________ of great importance to science.

A．which I think is	B．which I think it is
C．which I think	D．I think which is

9 . My friend showed me round the town， _____   was very kind of him.

A．which

B．that

C．where

D．it