【題目】The past decades have witnessed China's many scientific achievements ______ the development of Shenwei supercomputers is a typical example

【題目】The man sitting beside me on the plane was very nervous. He ________ before.

【題目】What has the man done?

【題目】A skilled workforce is essential, ________ is why our training program is so important.

【題目】How many children does the woman have?

【題目】--- Why do you suggest we buy a new machine?

【題目】—What is your impression of your former colleague Nick?

【題目】What could the woman be?

【題目】How will the man send his application?

【題目】Frank insisted that he was not asleep ________ I had great difficulty in waking him up.