The lady was so absorbed in her job that she didn't hear a customer ________ at the door.
#88799
A
to knock
B
knocking
C
be knocked
D
knocked
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You’d better tell John tO bring the latest Readers Digest t}le next time he——．
#97269
A
comes
B
is coming
C
will come
D
is about to come
I am not accustomed to _______when studying or working, so please remember this and don’t do it again.
#90791
A
be interrupting
B
have interrupted
C
being interrupted
D
interrupting
a written permission, he had to write another letter to the president of the university.
#90820
A
Not giving
B
Not having been given
C
Having not given
D
Having not been given
I felt greatly honored ____ when I took part in my friend’s birthday party.
#94524
A
to welcome
B
welcoming
C
to be welcomed
D
welcomed
__________ to sun, rain and wind for a long time, the stone split.
#94107
A
Being exposed
B
Having exposed
C
Exposed
D
To expose