Millions of people watched that first moon landing on television, their hearts in their mouths, aware of how difficult and dangerous an adventure it was, and what risks had to be ____.
#97093
A
taken
B
take
C
to take
D
taking
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For breakfast he only drinks juice from fresh fruit ___ on his own farm.
#95605
A
being grown
B
grown
C
to be grown
D
to grow
how to work out the difficult physics problem ,he asked the teacher for help .
#89838
A
Not to know
B
Not knowing
C
Knowing not
D
Not known
_____ her mother after being separated for 20 years, she couldn’t help, even though she tried not to, ______.
#94978
A
Seen, crying
B
To see, cry
C
Seeing , crying
D
Having seen, crying