TOEFL Structure Diagnostic Pre-Test

• it has

• is having

• which is having

• has

• its sides

• the sides are

• it is the side of

• all sides by

• The

• The fastest

• The fastest dog

• The fastest dog, the

• gets sun

• sunning

• the sun

• sunny

• when does the Earth's atmosphere trap

• does the Earth's atmosphere trap

• when the Earth's atmosphere traps

• the Earth's atmosphere traps

• takes

• it takes

• which takes

• took

• using gene therapy

• use gene therapy

• they use

• gene therapy uses

• While some types of coral reefs

• Some types of coral reefs

• There are many types of coral reefs

• Coral reefs

• what

• which

• what they

• which they

• they can afford

• they can afford it

• what is affordable

• able to afford