An awful accident ________， however, occur the other day.
#46996
A
does
B
did
C
has to
D
had to
推荐题目
It was 80 years before Christopher Columbus crossed the Atlantic______ Zheng sailed to East Africa
#84980
A
when
B
that
C
after
D
since
It was President Xi Jinping _____ visited the navy troops and urged to strengthen naval force on April 9, 2013.
#84848
A
when
B
which
C
that
D
he
I just don't understand_____________ that prevents so many Americans from being as happy as one might expect.
#85501
A
why it does
B
what it does
C
what it is
D
why it is
— ________ your brother said to you? — He encouraged me to talk to foreigners more often.
#85140
A
What it was that
B
What was it that
C
How it was that
D
How was it that