I’m glad to say that she’salready finished 50% of the book in these days.

The managers discussed the plan that they would like to see __________ the next year.

One of the students __________ good at ________piano.

People who have studied ancient instruments are hoping to learn more about the culture that ______ this ancient flute.

The flu is believed _____ by viruses that like to reproduce in the cells inside the human nose and throat.