It is very kind _____ you to help me with my work because it is very difficult _____me to do it by myself.
He is a great scientist.He never regards his physical problems________terrible problems.
—What are they doing now? —They are________the hill.
—We all went to the cinema except you last night.Why didn’t you come? —Because I________that movie twice.
Each of the students________going to visit the Great Wall next Sunday.
You need________the trees,because the weather is too dry and the trees need________.