(1)Workers can collect and cut the plants with ____________. ____________
(2)Then they can make ____________ to make their crops grow ____________. ____________
(3)Maybe it will be possible to make methane gas (CH4) for ____________. ____________
(4)It has beautiful purple-blue flowers, but everybody ____________ it. ____________
(5)The plants are really a free ____________. ____________
(6)Sometimes the plants ____________ ____________ thick that people can walk on them. ____________
(7)They ____________ grow and grow and grow. ____________
(8)Then the water carries ____________. ____________