______, we didn’t know each other, but now we are good friends.
#41455
A
First
B
First of all
C
At first
D
For the first time
推荐题目
---Must we finish the work all day? ---________. You can do it tomorrow.
#39974
A
Yes, you must.
B
No, you mustn’t.
C
No, you needn’t.
D
Yes, you may.
______ you live, I will find you at once.
#43398
A
Whatever
B
Whenever
C
Wherever
D
Whichever
I have two pens. ______ is red, ______ is black. 
#40099
A
Either… or…
B
First… next…
C
One…the other…
D
One… Two…