——Can you give me some advice on what I said just now?—— Sorry, my mind ______ .
#102959
A
has wondered
B
had wondered
C
is wondering
D
was wondering
推荐题目
In the past 5 years a great deal of money _____ improving the environment of the school.
#103617
A
is spent
B
has been spent
C
was spent
D
had been spent
The key you have just got     the front door. 
#102563
A
is used to opening
B
is used to be opened
C
is used to being opened
D
is used to open