备战2018年高考选择题每日一练（17）

______ the average age of the population increases, there are more and more old people to care for.  

We will put off the picnic in the park until next week, ____ the weather may be better.  

The manager put forward a suggestion ____ we should have an assistant. There is too much work to do.  

You are waiting at a wrong place. It is at the hotel ____ the coach picks up tourists.  

It is often the case ______anything is possible for those who hang on to hope.

Many young people, most ______ were well-educated, headed for remote regions to chase their dreams.

______some people are motivated by a need for success, others are motivated by a fear of failure.

Not until recently ______the development of tourist-related activities in the rural areas.

She asked me _______ I had returned the books to the library, and I admitted that I hadn't.

Nowadays, cycling, along with jogging and swimming, _______ as one of the best all-round forms of exercise.