单项选择题
A.produces B.manufactures C.does D.makes
A.of B.from C.to D.with
A.at B.from C.to D.on
A.listen B.be listened C.listening D.listened
A.in B.on C.to D.with
A.bear B.bore C.born D.bearing
A.off B.in C.on D.up
A.let B.visited C.landed D.touched
A.isolated B.generated C.accelerated D.congratulated
A.Haven’t B.Hasn’t C.Didn’t D.Aren’t
A.buy B.to buying C.buying D.to buy