They don’t seem __________who ________for help.
#62082
A
know , to talk
B
know, to talk to
C
to know, to talk
D
to know, to talk to
推荐题目
When something is on fire, people throw sand on it to put out the fire. The main use of the sand is to _________. 
#54333
A
protect the thing on fire
B
add weigh to the thing on fire
C
keep the air away from the thing on fire
D
lower the temperature of the thing on fire
—Teenagers are sometimes made         what they are not        .    —I agree.
#62821
A
to do;interested
B
to do;interested in
C
do;interested
D
do;interested in
You’d better ________here _________ the heavy rain
#52518
A
not to leave ; because
B
not leave; because
C
not leave; because of
D
not to leave; because of
__________the doctors in their hospital is about one thousand, and sixty percent of them___________ women. 
#55025
A
A number of; is
B
The number of; are
C
The number of; is
D
A number of; are