They live in a small house，and in front of ________ stands an orange tree.
A．which B．it
C．whom D．where
The road conditions there turned out to be very good，________ was more than we could expect.
A．it B．what
C．which D．that
________ I explained on the phone，your request will be considered at the next meeting.
A．When B．After
C．As D．Which
Today，we’ll discuss a number of cases ________ beginners of learning English fail to use the language properly.
A．which B．as
C．why D．where
The settlement is home to nearly 1,000 people，many of ________ left their village homes for a better life in the city.
A．whom B．which
C．them D．those
Darwin counted 225 flowering plants，________he collected and brought home 193.
A．that B．in that
C．of which D．all of which
