Mr. Bryan is a/an _______ secretary in our office, for he is able to do tasks successfully, without wasting time or energy.

We decided not to climb the mountains because it was raining ＿＿＿. 

It is difficult for children to change their eating habit later in life. _____，parents should encourage healthy eating from an early age.

When Helen saw her tutor nod ______ to her, she calmed down and went on with her performance .

Student loan is supposed to provide financial support for people who would ______ not be able to go to college.