Where are the children? The dinner’s going to be complerely ruined.—I wish they always late

The reason _______ he was absent from the meeting is_____ he suffered form a headache.

Parents have a duty to ____ their children from the harmful effects of the Internet.

Smiths went to bed __________ they arrived at the hotel.

In the past few years, My Heart Will Go On was a popular song among young people, _____were often heard singing it at parties．