. All of the students were         by the         speech given by the headmaster.

_________ in Current Biology, the finding suggests that female birds seek mates with superior singing skills.

This is the best way I could think of ______________ into the dangerous area.

The parents do everything we can _________ their daughter with good education, so that she will get a good job in the future.

___________ your car unlocked outside means ___________ trouble.