－Have you known Dr Jackson for a long time?－Yes，since she the Chinese Society．
#102003
A
has joined
B
joins
C
had joined
D
joined
推荐题目
He _____ football regularly for many years when he was young.
#101712
A
played
B
was playing
C
has played
D
had played
The manager was concerned to hear that two of his trusted workers _____.
#101325
A
are leaving
B
have left
C
were leaving
D
will leave
A new bridge ______ across the river and it is expected to open next year.
#103448
A
was building
B
is built
C
will build
D
is being built
If the weather had been better, we could have had a picnic. But it ____ all day.
#100693
A
rains
B
rained
C
has rained
D
is raining
----we’ve spent too much money recently.----well, it isn’t surprising. Our friends and relatives______around all the time
#103761
A
are coming
B
had come
C
were coming
D
have been coming