只要集中注意力，你一定能搞定这个难题。

If you focus, you can definitely ___do it and solve this difficult problem.

他们整晚都在卧室里做那件事。

They were ___doing it in the bedroom all night.

看他如何完成这个高难度瑜伽动作。

Watch how he ___does it with this challenging yoga pose.