What is the function of the mouse– It________ the cursor(光标) on the screen.

Not until the motorbike looked almost new_____repairing and cleaning it.

Does Bill do his new job well?— his old job I am afraid there is no hope for him[ ]

rricane ruined my vacation early this morning, otherwise I _____in Hawaii sunbathing on the beach at the moment.

Most of English learners want to know how the differences between British and American English ____.