So suddenlythatthe animals in the zoo looked very frightened during the total solar eclipse

I saw a number of pancakes in the plate, but now there is _______ left in it.

s good, hard-working and intelligent. _____, I can’t speak too highly of him.

Never visit strange websites, ________ the thieves may crack(破译)the password of your Internet account.

This book is said to be a special one，which________many events that cannot be found in other history books