---- I’m sorry I stepped outside for a smoke. I was very tired. ---- There is no _____ for this while you are on duty.

There’s a(n) ___ of peace and calm in the countryside, completely different from that in the city. 

When I worked as the general manager of the firm, I sometimes had _____ to visit London on business.

All the students are looking forward to the first _________ to pass the College Entrance Examination.

He is ______ as a leader but he hasn't ______ in teaching.