—You may find the key to the math problem on page 107.—Ah, it’s so simple. I wonder why I _____ of that.
#102292
A
hadn’t thought
B
haven’t thought
C
didn’t think
D
wasn’t thinking
推荐题目
He_____ articles for our wall-newspaper these years, and he____ about thirty articles.
#101162
A
has written; wrote
B
has been writing; wrote
C
is writing; has been writing
D
has been writing; has written
The whole class________ the teacher attentively.
#102814
A
are listening to
B
is listening to
C
are listening
D
is listening