You can arrive in New York earlier for the conference ____ you don’t mind taking the night train.
He has got himself into a dangerous situation ______ he is likely to lose control over the plan.
______, the concert began.
---- You shouldn’t have gone there alone last night. ---- But I ______, because Xiao Wang went there, too.
---- There is a lot of smoke coming out of the teaching-building there. ---- Really? It _____ be a fire, most probably.
If you don’t wait _______ the red light, you will be punished by the policeman.