Hello, I _______ you ______ in London. How long have you been here?
#102196
A
don’t know; were
B
hadn’t known; are
C
haven’t known; are
D
didn’t know ; were
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Experiments of this kind ___in both the U.S and Europe well before the Second World War.
#102411
A
had conducted
B
have conducted
C
have been conducted
D
had been conducted
--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
When_____home from work?
#103893
A
do your parents come
B
does your parents come
C
have your parents
D
our parents come