If it ______ too much trouble, I’d love a cup of coffee.
#100187
A
isn’t
B
wasn’t
C
weren’t
D
hadn’t been
推荐题目
Salley________Beijing for Shanghai and________there ever since. You can go and pay her a  visit on your way to Hangzhou. 
#104697
A
has left; worked
B
left; worked
C
has left; had worked
D
left; has worked
By the time Billy was 6, he         in the sea.
#101498
A
had already swum
B
was already swimming
C
has already swum
D
already swam