－You’ve dropped __________ “s” in the word “across”.－Oh, you are right, __________ letter “s” should be doubled like this “cross”.
#32593
A
a, a
B
an, a
C
an, the
D
the, a
推荐题目
Let’s look at the bag. Can you see “s” on the corner of _bag?
#32330
A
a; A
B
an; An
C
an; the
D
the; An
— I think a rabbit is a good pet for 5-year-old child like Vera.— Really? I don’t think so.
#34597
A
an
B
a
C
/
D
the
As volunteer teacher in the rural area，she has opened up students' eyes to the outside world.
#33948
A
the； the
B
a； a
C
a； the
D
the； a