So suddenly      that the animals in the zoo looked very frightened during the total solar eclipse.

__________ that the group of experts like them immediately.

—Susan has done well in the competition.   
—______. She always does well in such activities.

Only in recent years ______ to realize the importance of wildlife conservation.

Only when I left my parents for Italy          how much I loved them.

So quickly ____________ is a possibility today may be a reality tomorrow.

The boy wanted to ride his bicycle in the street, but his mother told him _______.

          and I’ll get the work finished．

China is a peace-loving country and under ____ circumstances ____ first use nuclear weapons.

In no place other than Britain ____ experience four seasons in a single day.