_______ the smoggy weather, the central government has taken action to deal with it.
You’d better speak aloud ______ we can hear you.
Xiao Li had an accident yesterday _____ he is in No.1 People’s Hospital now.
—Lily, _____ you _____ your ticket? —Not yet!
When the player finished running, he was out of _____.
Liang Li always helps others _____ she is very busy.