---You may find the key to the maths problem on page 107. ---Ah, it’s so simple. I wonder why I ________ of that.
#102456
A
didn’t think
B
haven’t thought
C
wasn’t thinking
D
hadn’t thought
推荐题目
I feel so excited!At this time tomorrow morning I        to Shanghai.
#101013
A
will fly
B
will be flying
C
will have been flying
D
am flying
 I didn’t like Aunt Lucy, who__without warning and bringing us presents.
#104416
A
always turned up
B
has always turned up
C
was always turning up
D
was always turned up
We won’t go to the park if it ______ tomorrow.
#100149
A
is snowing
B
will snow
C
snows
D
snowed