—— ______ you got to know I traveled to the USA?
——Through one of your colleagues.
| A．Where it was that | B．When it was that | C．How was it that | D．Why was it that |
The village has developed a lot we________learned farming two years ago.
| A．when | B．which | C．that | D．where |
Nancy enjoyed herself so much ______ she visited her friends in Sydney last year.
| A．that | B．which | C．when | D．where |
All the neighbor admire this family _________the parents are treating their child like a friend.
| A．why | B．where | C．which | D．that |
___ well prepared you are , you still need a lot of luck in mountain climbing.
| A．however | B．whatever | C．no matter | D．although |
We’ll have a picnic in the park this Sunday _____ it rains or it’s very cold.
| A．since | B．if | C．unless | D．until |