The study of natural history is not something to be left to biologistsIn fact, their capacity _____ the time they can spend away from their offices is very limited

The Little Mermaid is in _____________.

Look, John‘s fallen asleep at work!—Oh, he must have ________ late last night.

It was in the factory _____ I worked _____ I got to know her.

The opponents(对手) were________ the ball for most of the match, and at last they won the game.