—Shall I help you carry your travel case to the train ,Granny? —Oh,no,my boy.It is heavy.Thank you anyway.
Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _____ introduced the idea in 1953 _____ aspirin could reduce the risk of heart attacks.
I strongly recommend that the information______ in my report ____ to our headmaster without delay.
It was too dark, and I couldn’t _______ the words written on the blackboard.
______ impressed the audience most was ______ the magician Liu Qian played in this year's Spring Gala.
Lin Xi, a Chinese in Berlin, went to the World Championships in Athleties, she saw China’s Bai Xue win the gold medal.