Adjective clause

1. Most folk songs are ballads ______ have simple words and tell simple stories.

• (A) what

• (B) although

• (C)when

• (D) that

2. After its introduction in 1969, the float process __________ the world's principal method of manufacturing flat sheets of glass.

• (A) by which it became

• (B) it became

• (C) became

• (D) which became

3. In 1850, Yale University established Sheffield Scientific School, _____ .

• (A) engineers were educated there

• (B) where engineers were educated

• (C) in which were engineers educated

• (D) where were engineers educated

4. Many of Louise Nevelson's sculptures consisted of a number of large wooden structures ______ in complex patterns.

• (A) which she arranged

• (B) she arranged them

• (C) which arranged

• (D) arranged them

5. In addition to being a naturalist, Stewart E. White was a writer ______ the struggle for survival on the American frontier.

• (A) whose novels describe

• (B) he describes in his novels

• (C) his novels describe

• (D) who, describing in his novels

6. Diamonds are often found in rock formations called pipes, ______ the throats of extinct volcanoes.

• (A) in which they resemble

• (B) which resemble

• (C) there is a resemblance to

• (D) they resemble

7. William Samuel Johnson, __________ helped write the Constitution, became the first president of Columbia College in 1787.

• (A) whom he had

• (B) and he had

• (C) who had

• (D) had

8. Seals appear clumsy on the land, __________ are able to move short distances faster than most people can run.

• (A) but they

• (B) which they

• (C) they

• (D) which

9. The instrument panel of a light airplane has at least a dozen instruments _____.

• (A) the pilot must watch

• (B) what the pilot must watch

• (C) which the pilot must watch them

• (D) such that the pilot must watch them

10. A keystone species is a species of plants or animals ______ absence has a major effect on an ecological system.

• (A) that its

• (B) its

• (C) whose

• (D) with its