demonstrate|demonstrated|demonstrating|demonstrates

这些问题展示了战略规划的重要性。

These problems ___demonstrate the importance of strategic planning.

这些数字清楚地表明了该国面临的经济问题的规模。

These figures clearly ___demonstrate the size of the economic problem facing the country.

研究已经证明婴儿在出生后很快就能识别母亲的声音。

Research has ___demonstrated that babies can recognize their mother's voice very soon after birth.

工人们聚集在广场上游行，抗议不公平的工作条件。

Workers gathered in the square to ___demonstrate against unfair working conditions.

环保组织计划举行示威，反对砍伐森林。

Environmental groups plan to ___demonstrate against deforestation.

成千上万的人将举行游行，以表达对医护人员工作的支持。

Thousands will ___demonstrate in support of healthcare workers.

老师演示了如何使用这台设备。

The teacher ___demonstrated how to use the equipment.

他找到了一份在百货公司演示厨房电器的工作。

He got a job ___demonstrating kitchen appliances in a department store.

在研讨会上，她将演示编程的基本原理。

In the workshop, she will ___demonstrate the basic principles of coding.

这个实验演示了化学平衡的原理。

The experiment ___demonstrates the principle of chemical equilibrium.