根据句意,写出括号内所给单词的适当形式。
We all know there are lots of ______ (advantage) of living on Mars, so we won’t move out of Earth to Mars.
______ (hope), we can finish the project before this weekend.
Do you think it’s good for them to keep worries which were caused by others to _____ (they), guys?
The ______ (strict) the parents are, the more stressed their children will become.