Theboycomplained_______apaininhisstomach.
D
complain of ：抱怨，说自己有病。句意：这孩子说他肚子痛。
If the operation ________ carefully prepared, it would not have been successful.
It is difficult to ________ the implication between the lines.
Decision on whether the message is right or wrong should at least come after _____what the message is.
Students should_____their own interests as well as do their schoolwork.