I'll be out for some time. ______ anything important happens, call me up immediately.

A. In case                    B. As if

C. Even though                D. Now that

_______ you start eating in a healthier way, weight control will become much easier.

A. unless        B. Although

C. Before         D. Once

_______ the forest park is far away, a lot of tourists visit it every year.

A. As                        B. When

C. Even though              D. In case

________ the job takes a significant amount of time, most students agree that the experience is worth it.

A． If only               B． After

C． Although               D． In case

_____ he once felt like giving up, he now has the determination to push further and keep on going.

A. Where                   B. As

C. In case                 D. Now that

_________the students came from different countries, they got along quite well in the summer camp.

A. While                  B. Unless

C. Since                 D. Until

I believe you will have a wonderful time here  you get to know everyone else.

A. though         B. as if

C. once           D. so that

We need to get to the root of the problem______ we can solve it.

A. while                 B. after

C. before                D. as

If you miss this chance, it may be years ____ you get another one.

A. as                    B. before

C. since                 D. after

_____the damage is done, it will take many years for the farmland to recover.

A. Until               B. Unless

C. Once                D. Although