[ Grammar ]
Radium is no more a baby but the conditions of the discovery were somewhat peculiar, and so it is always of interest ______ them and to explain them.
A. in remembering
B. to have remembered them
C. to remember
D. remember
Select your answer:
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Conjunction › ViewIt’s raining hard, _____ we can’t go to the beach.
A. or
B. but
C. so
D. although
Grammar › View
That robot …….. (work) all day without a break!
A. has worked
B. has been working
C. work