My father is usually on _______ duty in his office every _______ few days.
#9658
A
the；a
B
/； /
C
/；a
D
a； /
推荐题目
There was _________ time _________ I hated to go to school.
#8581
A
a; that
B
a; when
C
the; that
D
the; when
—Really？Who will give________lecture?—Mr. Wang，________famous professor from Nanjing University.
#7738
A
the；/
B
a；the
C
the；a
D
a；a
. She makes _______ effort to learn maths and she has made _______ great progress in it.
#9819
A
an ; a
B
/ ; a
C
the ; /
D
an ; /
-- Do you know______ famous novelist, Mr. Wang in your school?--- I do know______ Mr. Wang in our school, but not that one.
#8703
A
the; the
B
the; a
C
a; a
D
a; the
Recently some studies have found that learning ____________ second language can lead to _______________ increase in one’s brain power.
#10486
A
a; the
B
不填; the
C
a; an
D
the; an