What method can you think of _________ with these broken computers?
I have been skating _______ nine o’clock.
He _____ when the UFO arrived.
The teacher said that they ______ hard-working students.
His father _____ to Nanjing. He _____ back next week.A. has been, is B has been, will beC. has gone, is D. has gone, will be
The teacher encourages her students ____ English as much as possible.