While_________in Britain, he made friends with the natives there.
#80765
A
working
B
worked
C
he works
D
he is working
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After that we never saw her again, nor_________ from her.
#83055
A
had we heard
B
we heard
C
did we hear
D
we have heard
However frequently ,the works of Shakespeare always attract many peo - ple.
#80784
A
performed
B
performing
C
being performed
D
to be performed
______, he still cannot make himself understood.
#83314
A
So clearly he speaks English
B
So clearly does he speak English
C
Clearly as he speaks English
D
As he speaks English clearly
____ by taking part in practice can the young people be toughened and hardened into steel
#81706
A
Still
B
Just
C
Only
D
Yet
The research is so designed that once ____ nothing can be done to change it.
#84058
A
begins
B
having begun
C
beginning
D
begun