—Were you late ________  the meeting? —No, I arrived there ten minutes________ the meeting started.

My mother always gets up _______ 6 o’clock in the morning. 

His father and mother often argue _______ what TV programmes _________.

The young man wears glasses because he spends too much time _____ the computer.

－Can I join Oxfam Trailwalker?－Only if you are ________ eighteen.