Question: Sentence A: What choices have we? asked Gauve.

Sentence B: Gauve asked his father about the choices he had.

If sentence A is true, how about sentence B?

Answer: it is not possible to tell

Question: Sentence A: The instance may be selected because it has been affected by events of interest, such as the desegregation of schools.

Sentence B: The instance can be selected because it was affected by events.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: On the first day of his midlife crisis, he stood in front of the mirror examining his receding hairline and wrinkles on his face.

Sentence B: He was looking at his flawless skin.

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: It has been a resounding success, with SO2 emissions from power generation dropping 4.5 million tons from 1990 levels and NOx emissions down 1.5 million tons from 1990 levels (about 3 million tons lower than projected growth).

Sentence B: SO2 emissions have doubled since 1990.

If sentence A is true, how about sentence B?

Answer:
no