But later people developed a way of printing, _____rocks.
#97721
A
used
B
using
C
and use
D
uses
推荐题目
It can be cheaper to buy a new washing machine than to get your old one _____.
#98750
A
repaired
B
to repair
C
repairing
D
having repaired
No matter how bright a talker you are, there are times when it's bettersilent.
#94850
A
remain
B
be remaining
C
having remained
D
to remain
The Internet has become increasingly popular, ______ us to see as well as to hear all kinds of programmes.
#89875
A
to allow
B
allowing
C
allowed
D
having allowed
Dina, ______ for months to find a job as a waitress, finally took a position at a localadvertising agency.
#94679
A
struggling
B
struggled
C
having struggled
D
to struggle
Mr. Taylor, of the urban life, is considering his last years in the countryside after his retirement.
#95762
A
tiring; spend
B
tired; to spend
C
tiring; spending
D
tired; spending