Human beings are superior to animals _____ they can use language as a tool tocommunicate.

It is imperative that you ____ here in time.

Rock: ______.

Sharon: Very well, and the experiment is nearly finished.

MrsZhangoftentellsusthatspringisthetime____peoplegosightseeing.

Hehad30poundsinhispocket____hewasdeterminedtobuyhissonagift.