Fully _ in looking after three children at home, she no longer has time to enjoy the various activities in the club.
Li Yang, the founder of Crazy English, says that he copies it down _______ he comes to a sentence.
This is the third time I _______ Beijing. The second time I ______ here was on Christmas Day last year.
Computers can do a lot of things nowadays, but _____ more still need to be done by man.
Lectures were _____ so students could be more focused on their study for the finals.
He _____ on the bench, with his head down and his eyes _____ on the ground.