i)Mai and Ba got wet because of they didn't take raincoats

h) Though he didn't finish the paper, he went to sleep ( In spite of )
=> In spite of not finished the paper, he went to sleep.
g ) In spite of didn't his good salary, gave up his job ( Although )
=> Although his salary isn't good, he gave up his job.
i) Mai and Ba got wet because they didn't take raincoats ( Because of )
=> Mai and Ba got wet because of no raincoats.
j) They thought carefully before working. However, they made a terrible mistake ( Although )
=> Although they thought carefully before working,however they made a terrible mistake.