Set 18 Grammar Review

It is cold above the ​ (a)   .

• timberline
• Torrid Zone

The ​ (a)   is a warm, tropical region.

• Torrid Zone
• timberline

Choose the correct present tense form of the verb be.

I ​ (a)  

• am
• are
• is

Choose the correct present tense form of the verb be.

You ​ (a)  

• are
• am
• is

Choose the correct present tense form of the verb be.

He ​ (a)  

• is
• are
• am

Choose the correct present tense form of the verb be.

They ​ (a)  

• are
• am
• is

The Tropic of Cancer and the Tropic of Capricorn are imaginary lines running parallel to the ​ (a)   .

• equator
• meridian
• Alaska

An atoll is a ​ (a)   .

• coral reef
• mountain top
• horned toad

The equator divides the earth into the Northern and Southern ​ (a)   .

• hemispheres
• peninsulas
• archipelagos
• climate zones

An ​ (a)   is a narrow strip of land bordered by water and connecting two larger bodies of land.

• isthmus
• archipelago
• peninsula
• estuary