Mary, turn off the water ________ you are brushing your teeth.
A.until B.unless C.while D.before
Those young firemen were brave enough to __________ the fire in the forest.
A. work out B. put out C. hand out D. look out
My mother ________ the floor when I did my homework last night.
A.is sweeping B.was sweeping C.sweeping D.has swept
The environment in my hometown is improving because many trees ________ every year.
A.plant B.planted C.are planted D.were planted
The old man leads a simple life, ________ he has a lot of wealth.
A.although B.when C.unless D.because
I could____control my feelings at the moment. The movie reminds me of my childhood.
A.really B.nearly C.slowly D.hardly
