I find _______necessary to do everything we can ____________protect the environment.
--How do you feel when you hear the song? --It makes me _______ happy.A.felt B.to feel C.feel
--I _______for America on business next week.A.will leave B.am leaving C.leave
--As we know,China is still a _________ country while the U.S.A. is a _________country.A.developing;developed B.developed;developing C.developed;developing
--Lucy said that she ________the work in this evening.A.will finish B.finishes C.would finish
--The cars were all late__________ the bad weather.A.because B.thanks to C.because of