Being a teacher always encouraging students to think for themselves, I won't tell them answers until they __________ on a math problem for more than an hour.
#101395
A
have worked
B
will have worked
C
will have been working
D
had worked
推荐题目
Polly observed that she ______ by a tall man in a dark coat when she ______ the faces around her on the train.
#102499
A
was watched; stared at
B
was being watched; glanced at
C
was being watched; glared at
D
was watched; looked at
He asked me how much ________ on the mountain bike.
#101387
A
did I pay
B
I had spent
C
did I spend
D
I had cost
Why don’t you try on this jacket? It ____ nice on you.
#100701
A
looks
B
looked
C
will look
D
has looked