Occasions are quite rare ____ I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |
Darkness before the traveler could find shelter for the night.
| A．set in | B．set down | C．set against | D．set forth |
The bank has a lot of all over the world.
| A．parts | B．branches | C．stores | D．shops |
I hesitate to get involved in this .
| A．advantage | B．adventure | C．advance | D．advice |
From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
| A．why | B．how | C．because | D．whether |
struck me most in the movie was the father’s deep love for his son.
| A．That | B．It | C．What | D．Which |