用所给词的适当形式填空
(1)It’s________(cloud)today.It seems that it is going to rain.
(2)Lisa is my________(old)sister and she is two years older than me.
(3)Please explain the matter________(clear).
(4)We need to learn how to dress________(proper).
(5)The telephone is an important invention.It is a popular way of________(communicate).
(6)I don’t see any________(relate)between the two problems.
(7)Firstly,I don’t have enough money.________(second),I don’t have free time.