—You seemed to be impressed by his skill.—No. It was his courage ________ his skill that really impressed me.
—Is the manager available tomorrow afternoon?—No, he is busy. Otherwise he ________ the meeting.
— Mum, where is my ball? I remember I put it here yesterday.— You _______ it in the wrong place.
On workday mornings I usually ________ an hour driving to work because of the traffic jam.
the website of China Daily, and you will learn more about it.
____ has helped to protect the environment is worth praising.