You must _____ a wide vocabulary if you want to learn a language well. 
#12377
A
build up
B
put on
C
settle down
D
set up
推荐题目
All those second-hand goods are sold at                  before.
#14068
A
30%as lower price as
B
30%as low a price as
C
as 30%low price as
D
30%lower price than
In China        graduates go abroad to have a further study every year.
#14141
A
a great deal of
B
the number of
C
many a
D
a great many
He devoted all the money he had _________a school.
#13201
A
set up
B
to set up
C
to setting up
D
setting up