................. problems in sailing in tropical seas is the coral reefs.

Because

Because of

Although

In spite of

Because of

Because

Unless

When

although he isn’t intelligent

because he is intelligent

in spite of his intelligence

despite his intelligent

Not until we arrived at the airport, did we realize that our passports were still at home

We arrived at the airport and realized that our passports are still at home

Not until had we arrived at the airport, we realized our passports were still at home

It was until we arrived at the airport that we realize our passports were still at home

wicked

beloved

learned

cooked

the highest

higher and higher

highest

more and more high

Having found

of

was sentenced

a number

She advised me to be careful or I might get lost and run out of money

She warned me to be careful or I had to get lost and run out of money

She ordered me to be careful and I might get lost and run out of money

She told me to be careful if I got lost and run out of the money

imaginable

imaginative

imagining

imaginary

What

was saying

were

to stop taking