Q: If He managed to struggle up to a sitting position in the bed, trying to make out more of his surroundings., can we say that "He was struggling to sit up because of a severe headache."?

A: it is not possible to tell

Q: If Perhaps, said Mrs. Vandemeyer, smiling agreeably., can we say that "Mrs. Vandemeyer smiled agreeably."?

A: yes

Q: If It grew from 5.2 billion pieces in 1987 to 9.9 billion pieces in 1997., can we say that "the number of pieces in 1987 was greater than the number of pieces in 1997."?

A: no

Q: If Thorn turned and looked at the mercenary., can we say that "Thorn glared at the mercenary in front of him."?

A:
it is not possible to tell