He was ______ medical student before he turned _______ engineer.
#10004
A
a; an
B
the; the
C
a; /
D
/; an
推荐题目
______ on-going division between English-speaking Canadian and French- speaking Canadians is ______ major concern of the country.
#10458
A
The; 不填
B
The; a
C
An; the
D
An; 不填
We can never expect bluer sky unless we create less polluted world.
#10522
A
a; a
B
a; the
C
the; a
D
the; the
In recent days ,with the help of our teacher , I have made ___ great progress in _____mathematics.
#8146
A
a; the
B
/ ;/
C
/ ; the
D
a ; /
Although everything seems to have been taken into consideration, ____ accident can happen when the astronauts walk in _____ space．
#8828
A
不填；the
B
an；不填
C
the；the
D
an；the
It’s good feeling for student’s to return to school after summer vacation.
#9711
A
a; the
B
a; a
C
a; the
D
a; /