He is__________as a leader but he hasn’t__________in teaching.

Many new _____ will be opened up in the future for those with a university education.

 Those black clouds are a sure _____ that it’s going to rain. 

The system has been designed to give students quick and easy        to the digital resources of the library .

Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.