What impresses me most is _________ he appears in front of others, he wears a sincere and charming smile. A. which B. that C. where C. that whenever
_________I went to the US,I visited many cities.
He_______gardening after his retirement.
Traffic on the bridge was_______for an hour because of the accident.
Ten dollars_______a big sum for a small child,and they will go a long way.
_______tomorrow,our ship will set sail for Macao.