The president is to give a formal __ at the opening ceremony.
正确答案： A
本题解析：
【考情点拨】考查名词词义辨析。
【应试指导】句意：总统将在开幕式上做正式讲话。 give a speech为固定搭配，意为“发表讲话，做演讲”。 debate 辩论，争论；discussion 讨论； argument 论点，争论。
This article __ more attention to the problem of cultural conflicts.
When I am confronted with such questions, my mind goes __, and I can hardly remember myown date of birth.
Moviegoers know that many special effects are created by computers, they often don' tknow is that these scenes still require a lot of work.
Not until the game had begun __ at the sports ground.
If their marketing team succeeds, they __ their profits by 20 percent.
Nowadays little knowledge __ to be a dangerous thing.
My father asked __ to help with his work.
He pointed at the new car and asked, "___ is it? Have you ever seen it before?"