There were signs here and there, _____ visitors to look out for ______ rocks.
#5018
A
warning; fallen
B
warned; falling
C
to warn; fallen
D
warning; falling
推荐题目
No one knows exactly when our ancestors started talking，but new evidence suggests _______might have happened a long time ago．
#4852
A
which
B
what
C
it
D
they
.If _____,the experiment will be successful.
#4718
A
carefully doing
B
it done carefully
C
carefully done
D
doing carefully
To their great relief, the missing child returned home, ______, after an absence of two weeks.
#4920
A
felt tired and sound
B
tiring and soundly
C
feeling tired but soundly
D
tired but sound
He was busy writing a story, only ______ once in a while to smoke a cigarette.
#4946
A
to stop
B
stopping
C
to have stopped
D
having stopped
The jug ____ easily．Be careful how you handle it．
#4797
A
will be broken
B
will break
C
is broken
D
breaks