____________ all his hard work, he still failed to finish the task in time.
— 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.
—Why didn’t Tom go to the concert last night ? — I have no idea, but I think he _____ in his study.