-- What is the function of the mouse?
-- It________ the cursor(光標(biāo)) on the screen.
A．is used for movingB．is used to moving
C．is using for movingD．used to move
A
考查短語(yǔ)：被用來(lái)做某事be used for doing sth，過(guò)去常常做某事used to do,J句意：鼠標(biāo)的作用是什么？它被用來(lái)在屏幕上移動(dòng)光標(biāo)。故選A
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