His father is engineer. He designed such useful machine
#33029
A
a an
B
an a
C
an an
D
a a
推荐题目
Mr. Chen is _____ generous man. He has donated a lot of money to people in need.
#34435
A
a
B
an
C
the
D
/
— Do you know ______ girl who is standing under ____ tree?— Of course! She is Lucy, my classmates.
#34474
A
the, the
B
a, a
C
a, /
D
/, the
—Lisa, are you going to play ______ violin after school this afternoon? —No, and I’m going to play ______ chess with Tina.
#32434
A
the; the
B
the; /
C
/; the
D
/; /