He reached the station ______ only that the train had just left. A: exhausted ... learned B: B. exhausting ... learning C: to exhausted ... to learn D: exhausted ... to learn

We had a so long and ______ political meeting that we felt _____. A: exhausted…exhausted B: exhausting…exhausted C: exhausted…exhausting D: exhausting…exhausting

What an   [u]           [/u]  day ! After a whole day's hiking, I am completely   [u]            [/u]. A: exhausted; exhausted B: exhausting; exhausting C: exhausting; exhausted D: exhausted; exhausting

After a long and exhausting journey they arrived ________.

It has been an ____ day. A: exhaust B: exhausting

He reached the station ____ only _____ that the train had just left. A: exhausted...learned B: exhausting...learning C: to exhausted...to learn D: exhaused...to learn

“But you’re wearing yourself out” means “you are exhausting yourself.”

It was ____________ work, but they managed to keep going. A: exhausting B: twisted C: stumbled D: remind…of

The clustering problem belongs to which subfield of machine learning A: Supervised learning B: Unsupervised learning C: Semi-supervised learning D: Deep learning

中国大学MOOC: The four pillars of education are: learning to live together, learning to know, learning to do and learning to be.