TOEFL Structure and Written Expression 5 (Longman PBT)

__ on the first Saturday in May at Churchill Downs.

• For the running of the Kentucky Derby.

• The Kentucky Derby is run

• To run the Kentucky Derby

• When the Kentucky Derby is run

According to __ quantum mechanics, it is normally impossible to pinpoint the orbit of an electron bond to an atom.

• the related laws

• the laws are related

• the laws of

• the laws are related to

Chicago is home to more than 4 million people __ as many as 54 languages and dialects.

• speak

• they speak

• spoke

• speaking

When Mexico ceded California to the United States in 1884, signers of the treaty did not know __ had been discovered there.

• golden

• that with gold

• that gold

• with gold

Rubber came to the attention of Europeans __ found Native Americans using it.

• explorers

• after explorers

• when explored

• after explorers they

Most asteroids are located in __ called the asteroid belt.

• what is

• what is in

• is what

• is it

About three-fourths of the books published in the United States are put out by publishers __ in New York City.

• locates

• located

• they locate

• they are located

The physical phenomenon __ use to obtain water from the soil is osmosis.

• plants have roots

• that plant roots

• what plant roots

• plants are rooted

More books have been written about the Civil War __ any other war in history.

• that there is

• about

• of

• than about

A sheet of clear glass, __ with a film of metal, results in a luminously clear mirror.

• when backed

• it is backed

• is backed

• when is it backed