Susan decided not to work on the program at home because she didn’t want her parents to know what she     .
#103956
A
has done
B
had done
C
was doing
D
is doing
推荐题目
He works as an engineer now, but he _____ on a farm for three years.
#101493
A
has worked
B
worked
C
was working
D
had worked
By the end of last year another new gymnasium_____ in Beijing
#102241
A
would be completed
B
was being completed
C
has been completed
D
had been completed
The new dictionaries are very useful. They        well and       already.
#101378
A
sell; have been sold out
B
sold; had sold out
C
sell; sell out
D
are sold; have been sold out