He had collected plenty of historical evidence, proved that humans used to have different sleeping patterns.
#76733
A
that
B
which
C
it
D
what
推荐题目
In our class there are 46 students, _______ half wear glasses.
#75798
A
in whom
B
in them
C
of whom
D
of them
She came back with her two friends, .
#78137
A
neither of them are doctors
B
neither of them is a doctor
C
neither of whom are doctors
D
neither of whom is a doctor
The old town has narrow streets and small houses _______ are built close to each other .
#78220
A
in which
B
where
C
what
D
that
Nowadays people are more concerned about the environment _______ they live.
#76483
A
what
B
which
C
when
D
where