The Chinese mainlanders from selected cities are allowed to visit Taiwan______ individual tourists

Though it is difficult, I ______ him find a job, which made him very pleased.

Keep your confidence up by taking gradual steps forwards, rather than freezing, when ______ with what seems like great trouble[ ]

lly, senior citizens enjoy their freedom andthey prefer to live on their own _________ they can.

He was driving home on the highway lastnight when he was stopped by a policeman，