-There ______ many trees at the foot of the mountain.--But now they are slowly disappearing because of human activities.A.is used toB.used toC.used to be
Jim often goes to school ________ bike.But today he goes to school ________ the school bus.
I’m too tired.I must ________ a rest.
It takes me fifteen minutes ________ from my home to the bus station.
—________ is it from here to the supermarket? —About twenty minutes’ walk.
—____ can you finish this English exam? —In about one and a half hours.