The world economy has improved _____ since the end of last year, but major problems and challenges are not fully solved.
As we all know, many Chinese words have come into English, ___ typhoon, tofu and kung fu.
Try to _____ the children down. They’re too excited.
I am very grateful for your assistance, and hope that one day 1 may be able to do something for you__________.
--- How are you _______ with your study at present?--- very well.
We should not _______ small mistakes, or they might lead to big accidents.