—Did Jack take the doctor's advice that he _____ in bed for another three days?—If only he_____.
He came back late, _____ which time all the guesses had already left.
Because so many visitors are visiting our school today, some teachers have to _______ guides.
She thinks only of herself; she doesn’t _____ other people.
—Peter didn’t come to the meeting this morning. — I _______ him yesterday, but I was too busy and forgot it.
I ________ it myself ________ your homework.