Subject Verb Agreement (Intermediate)

Among bees _____ a highly elaborate form of communication.

• (A) occur

• (B) occurs

• (C) it occurs

• (D) they occur

_____ heated by solar energy have special collectors on the roofs to trap sunlight.

• (A) A home is

• (B) Homes are

• (C) A home

• (D) Homes

Each number of binary system are formed from only two symbols.

• (A) binary

• (B) are

• (C) formed

• (D) only two

Scientists at the medical center is trying to determine if there is a relationship between saccharine and cancer.

• (A) is trying

• (B) to determine

• (C) is

• (D) saccharine and cancer

On the rim of the Kilauea volcano in the Hawaiian Islands are a hotel called the Volcano Hotel.

• (A) the rim

• (B) Hawaiian Island

• (C) are

• (D) called

The great digital advances of the electronic age, such as integrated circuitry and a microcomputer, has been planted in tiny chips.

• (A) great digital

• (B) circuitry

• (C) has

• (D) planted

There are many frequently mentioned reasons why one out of four arrests involve a juvenile.

• (A) frequently

• (B) mentioned

• (C) four arrests

• (D) involve

Kepler's Laws, principles outlining planetary movement, was formulated based on observations made without a telescope.

• (A) was

• (B) formulated

• (C) based

• (D) made

Only with a two-thirds vote by both houses are the U.S. Congress able to override a presidential veto.

• (A) two-thirds

• (B) are

• (C) able to

• (D) veto

Of all the evidence that has piled up since Webster's paper was published, there is no new ideas to contradict his original theory.

• (A) has piled

• (B) is

• (C) new

• (D) to contradict