When he ________ the door，he found his keys were nowhere.
#99503
A
would open
B
opened
C
had opened
D
was to open
推荐题目
China sent up Shenzhou V manned spaceship into space successfully, which shows science and technology ___ rapidly in China.
#101501
A
have been developing
B
develops
C
is developing
D
has developed
I can guess you were in a hurry. You _____________ your sweater inside out .
#104283
A
had worn
B
are wearing
C
were having on
D
were dressing
They are living with their parents for the moment because their own house _________.
#101299
A
is being built
B
has been rebuilt
C
is rebuilt
D
has rebuilt
--You do a very good job in German translation! --Thanks. I ______ German in Zhejiang University for four years!
#100246
A
was studying
B
study
C
studied
D
had studied
My last job lacked variety; I __________ the same things all the time.
#100357
A
did
B
have done
C
was doing
D
have been doing