They couldn't play soccer because it rained heavily (Using "because of")

1/ They couldn't play soccer because it rained heavily(Using"because of")
2/ She has a rich father .she is happy (Using"that -clause")
3/ Mai/was/pleased/she/cot/for/an A/her assignment/that (make a complete sentence)
4/ Let's organize the show to mise money.I suggegest ..............
5/ I/think/energy-saving/buibs /should /use /save /electricity(make a complete sentence)
6/ I/suggest/take/shower/instead/bath/save water