The computer ________ last week has gone wrong.
举一反三
- In the last ten years, computer technology has ______ rapidly
- The computer industry has greatly over the last decade.
- His parents ______last week, the child has no one to look after him.
- If you（）there last week, you would know what happened. A: been B: gone C: have been D: had been
- John______away for the last two days but he should be back tomorrow. A: is B: went C: has been D: has gone