which sentence contains a restrictive clause? the road, which was long and winding, took us deeper and…

which sentence contains a restrictive clause? the road, which was long and winding, took us deeper and deeper into the dark forest. the parrot, which must have been tame, flew out of the tree and landed on my shoulder. aware that i could be bitten, i carefully approached the trapped dog, which growled at me. the astronaut who first stepped on the moon was neil armstrong.

which sentence contains a restrictive clause? the road, which was long and winding, took us deeper and deeper into the dark forest. the parrot, which must have been tame, flew out of the tree and landed on my shoulder. aware that i could be bitten, i carefully approached the trapped dog, which growled at me. the astronaut who first stepped on the moon was neil armstrong.

Answer

Brief Explanations:

A restrictive clause is essential to the meaning of the sentence and is not set off by commas. In "The astronaut who first stepped on the moon was Neil Armstrong", "who first stepped on the moon" is restrictive as it defines which astronaut is being referred to. The other sentences have non - restrictive clauses set off by commas.

Answer:

The astronaut who first stepped on the moon was Neil Armstrong.