Do you think Maths __________ useful subject? 
#33851
A
is a
B
is an
C
are a
D
are an
推荐题目
_______ was cooked by Mum. It was so delicious.
#32407
A
The dinner
B
A dinner
C
An dinner
D
Dinner
It’s       my ruler.
#33136
A
the
B
/
C
a
D
an
I seldom take _______bus to school. I always go to school by _______bike.
#33013
A
a;不填
B
不填;a
C
a;the
D
不填:the