Once upon a time，a(n)________famous scientist said that life was not easy for any of us but first of all we should believe in ourselves.
#65985
A
another
B
sure
C
some
D
certain
推荐题目
The air ______ different gases _____ together.
#67407
A
consist of, mixing
B
is made up of, mixed
C
consisting of, mixed
D
makes up, mixing
Now I come here at the of Mr.Smith to assist him finishing the work.
#64389
A
requirement
B
remark
C
demand
D
request
As there was no spare bedroom, Susan had to ______ her friend for a night in the sitting-room.
#81380
A
build up
B
fix up
C
take up
D
pick up