The villagers planted many trees in and around the village, which, _____, provide them with a beautiful scenery and much fresher air.
The doctor is trying to save the patient by every _________________ means.
Can you imagine the astronauts’___________ in space?
It is difficult to imagine his _____________ the decision without any consideration.
---- There is a story here in the paper about a 110-year-old man. ----- My goodness! I cannot imagine __________ that old.
John as well as his classmate ___________ one exam after another.