----- ________do you visit your grandparents? -------Once a month.
#40716
A
How soon
B
How long
C
How much
D
How often
推荐题目
The cake is very             .I’d like some more.
#42409
A
delicious
B
terrible
C
well
D
cheap
This program _______in 1980, and so far __________thousands of oversees  Chinese students to China to look for their roots 
#43800
A
started; has taken
B
started, took
C
started; brought
D
started; has brought
Now more and more people ________ sending e-mails ________ letters.
#43291
A
prefer to; to writing
B
prefer to; to write
C
prefer; to writing
D
prefer; to write