Definition: used to give extra information about something Level: B1
我的自行车，是红色的那辆，停在门外。
My bike, ___which is red, is parked outside.
这家博物馆，周日免费开放，吸引了许多游客。
The museum, ___which is free on Sundays, attracts many visitors.
这家酒店，提供免费WiFi，很受游客欢迎。
The hotel, ___which offers free WiFi, is very popular with tourists.
