Only when （ ） in the afternoon （ ） able to leave.

John Smith, a diligent student, never refuses to （ ） more responsibilities that are assigned to him.

The defense computers calculate way to （ ） the enemy missiles.

Only those who have tasted bitterness will （ ） among others.

Three of us will go there, and the rest （ ） to stay here.

“（ ） everyone’s here,” she said, “let’s begin to discuss the solution to the problems we have found．”

As population increases, （ ）.

（ ） the past year as an exchange student in Hong Kong, Linda appears more mature than those of her age.

It is very expensive to （ ） the fashion.

_____, the professor is still trying to learn a new language.

It is （ ） impossible to work with this noise around.

She （ ） tell white lies to make people feel better, to smooth things over.