In spite of the city’s crowded urban environment, opportunities for outdoor _______ are never lacking.

Although we had told them not to keep us waiting, they made no _________ to speed up deliveries.

All the students are looking forward to the first ________to take the College Entrance Examinations.

I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.

We volunteered to collect money to help the ______ of the tsunami.