Our teacher told us that light _____ much faster than sound.
#41507
A
traveled
B
travels
C
is traveling
D
was traveling
推荐题目
My iphone 5 needs to be repaired. How much do you think it _____? 
#39258
A
would cost
B
cost
C
has cost
D
will cost
Mary ______ in Beijing since 2008.
#39884
A
have lived
B
is lived
C
lived
D
has lived
What ____ you ______ at this time yesterday? 
#41883
A
did ; do
B
is; doing
C
were; doing
D
are ; doing
This is the best hour I can _________ I_________ in the past twelve years.
#38830
A
know;have had 
B
remember;had
C
think of;have had 
D
think out;had