They sat face to face, ________ about the things they were interested in for a long time.
#95861
A
and talk
B
talking
C
to talk
D
talked
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The speech which he made ______ the football match bored a lot of fans to death.
#94898
A
being concerned
B
be concerned
C
concerned
D
concerning
I would appreciate _____ it a secret.
#96686
A
your keeping
B
you to keep
C
that you keep
D
that you will keep
Many children seldom communicate with adults, ________ it difficult for their parents to know what they are thinking about.
#90642
A
making
B
makes
C
to make
D
made
Though ______, many laws of nature exist.
#97974
A
not having been discovered
B
having not been discovered
C
not having discovered
D
having not discovered
The mother felt herself cold and her hands trembled as she read the letter from the battlefield.
#91723
A
grown
B
grow
C
to grow
D
to have grown