2 . By last Sunday, Heilongjiang had reported 145 confirmed cases since Jan 10, _____ the first asymptomatic(无症状的) carrier of the current outbreak was reported.

A．when

B．which

C．as

D．who

3 . Students should take an active part in community activities _____ they can gain experience for their future development.

A．when

B．which

C．where

D．whose

4 . Between the two halves of the football game is a 15-minute break, __________ the audience can have a rest．

A．when

B．where

C．which

D．that

5 . I like to go shopping on weekdays,__________ the shop isn’t crowded. (用适当的词填空)

6 . Mr. Smith owned this oil painting until the early 1990 s, ____________he gave it to his grandson.

A．which

B．when

C．where

D．who

7 . We will put off the picnic in the park until next week, ________ the weather may be better.

A．that	B．where
C．which	D．when

8 . It was an exciting moment for these football fans this year,________for the first time in years their team won the World Cup.

A．that	B．while
C．which	D．when