---Must Jack come to sign his name on the paper?---Yes, he_____ .
Scientists can look _______ the huge telescope to find the planet.
About _______ of students ______ reading stories in English in our class.
He watched TV for an hour. At 8 o’clock he stopped _______ his homework.
He didn’t go to bed _______ his mother came back.
It is ___________ to hold the water.