You’d better book the tickets as early as possible, ________ they will be sold out soon. 
#56032
A
and
B
but
C
so
D
or
推荐题目
 In a position like this, one can ________  stand up _______ lie down . So it is very uncomfortable.
#55361
A
both… and…
B
either… or…
C
neither… nor….
D
not only… but also…
—   do you have an Art Festival in your school? —Once a year.
#56324
A
How long
B
How often 
C
How far
D
How soon