—Have you known Dr. Jackson for a long time?—Yes，since she ________ the Chinese Society.
#99164
A
has joined
B
joins
C
had joined
D
joined
推荐题目
I called him many times, but I didn’t get through, maybe his mum _ on the phone all the time．
#101393
A
talked
B
was talking
C
has talked
D
had talked
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 constant noise around here______ me crazy!—Calm down.It’s no use complaining.
#99823
A
drove
B
drives
C
is driving
D
had driven
Investment by Chinese companies in the US _____ rapidly in recent years.
#99065
A
was growing
B
has been growing
C
had grown
D
will be growing
– Listen! It’s raining. -- Oh, really? I ________ it at all.
#100170
A
didn’t realize
B
don’t realize
C
haven’t realized
D
hadn’t realized