The mayor will go to Beijing by train _____ by air.

Last month’s terrible train crash in Wenzhou has shaken the country,not only causing the loss of lives,but also____peopleconfidence in the rail system. [ ]

I help you, sir —I appreciate ____ if you do me the favorto pack the luggage.

_____ David goes, he is welcome

cidentturned him into different person, even if hedid not realize it at beginning