— ____ do you clean the classroom?— Three times a day.
#59294
A
How long
B
How often
C
How soon
D
How many
推荐题目
Cathy ______ of medium build and ________ curly hair.
#59987
A
has, has
B
is, is
C
is, has
D
is, has a
---Have you read this book?---Yes.I _______ it two weeks ago.
#63695
A
am reading
B
have read
C
will read
D
read
--- What __________ him?            --- He had a cold last night.
#56380
A
was happened to
B
was happened
C
happened
D
happened to
 -Can you join the ________ club?-Yes. I can swim very ___________.
#52438
A
swimming; well
B
swim; good
C
swiming, well
D
swims; good
In the fields everything _____ to grow. 
#57110
A
begin
B
begins
C
are beginning
D
is beginning