A. don't know B. hadn't know C. wasn't knowing D. wouldn't know
A. has B. have C. will have D. would have
A. would be freezing cold B. would be frozen cold C. will befreezing cold D. can freeze coldly
A. be sent B. send C. will be sent D. was sent
A. couldn't live B. couldn't have lived C. can't live D. could live