Tom ________ his father and his father________ young.

Jane’s pale face suggested that she ____ ill, and her parents suggested that she ____ a medical examination[ ]

The Foreign Minister’s Five-day visit to this island country, ______to promote the relationship between them, turned out to be a failure because of their differences about nuclear weapons

Be careful when you cross the road in rushhours so as to avoid by a car．

Many students in this school make __________ a rule to come to the evening classes even on Saturdays and Sundays