. --- I hear Jane has gone to the Holy Island for her holiday. --- Oh, how nice! Do you know when she ______ ?
nature
The doctor did __________ save the patient’s life.
—Tom, have you finished your homework? —Yes, I ________ before you came back, mom.
I wonder why you didn’t do as ________ and it’s the third time you have done this.
It was so dark outside that the little child ________ go out by himself.