I won’t call you, ______ something unexpected haappens.
#57592
A
because
B
While
C
unless
D
while
推荐题目
It will be 2 years ______ we see each other again.
#55648
A
after
B
before
C
if
D
though
 Which of the following is RIGHT? 
#55520
A
In the early 19th century, the first trains began to carry passenger.
B
Dinosaurs lived on Earth more than 60 millions years before human beings.
C
The king ordered his men to collect a bag of rice.
D
There are many tiny computers around us, and we dependent on them nearly every day.
John fell asleep _______ he was listening to the music.
#56803
A
after
B
before
C
while
D
as soon as