---Will you walk a little faster?  ---I was afraid you could not _____ .
#78378
A
walk up
B
go up
C
keep up
D
catch up
推荐题目
How the big forest fire has          remains to be a mystery.
#66249
A
turned up
B
broken out
C
taken place
D
broken up
What we expect from you is working hard      hardly working.
#63998
A
less than
B
rather than
C
as well as
D
as much as