These flowers should not be watered too ______, once _____. 
#12398
A
long; every other day
B
often; every fourth day
C
soon; every two days
D
frequently; each five days
推荐题目
Do you know how much that _____?
#12803
A
adds
B
adds up
C
adds to
D
adds up to
I have read ______ books and I’ve learned ______ .  
#14420
A
a great deal of; a lot of
B
a great many; a lot
C
a large number of; lots of
D
plenty of; a lot of