The temperature can fall to -50°C. _____ is, 50°Cbelow freezing point.A. Which B. It C. This D. That
1. In this factory, suggestions often have to wait for months before they are fully _____.
What is most obvious in this book are all those details of daily living which make Mrs. Richard _____ common.
Noone has _____ been able to trace the author of the poem.
It was a great _____ for him to be pleasant to people he didn't like.
The exciting news he had been looking forward ___ at last, so he did nothing but____.