Although everything seems to have been taken into consideration， accident can happen when the astronauts walk in space．
#9795
A
不填；the
B
an；the
C
the；the
D
an；不填
推荐题目
_____ first voyage of the ship ---- Titanic was not ______ success.
#8199
A
The, a
B
A, a
C
A, the
D
The, the
. When it comes to bringing up children, some people say ____ discipline produces __ ____ happy, well-behaved child.
#9856
A
/; a
B
the; a
C
a; /
D
a; a
How beautiful she sings! I have never heard ____.
#10064
A
the better voice
B
a good voice
C
the best voice
D
a better voice
The person in front of me at ＿＿＿checkout was using ＿＿＿card to check out butfound it wasn't working.
#8296
A
不填；a
B
the; a
C
a; the
D
the; the
Electronic products are ________ must for new generation of ________ college students.
#7948
A
a; a
B
the; a
C
a; /
D
the; /