22.—Can you give some advice on what I said just now?
—Sorry. My mind______________.
| A．is wandering | B．was wandering |
| C．has wandered | D．had wandered |
________ the book if you are free, and you will learn a lot about how to study English.
| A．Read | B．Having read | C．To read | D．Reading |
-- I' m still working on my project.
-- Oh, you'll miss the deadline. Time is ________.
| A．running out | B．going out | C．giving out | D．losing out |
-- Do you have any clothes ________, sir?
-- No, thank you.
| A．to wash | B．to washing | C．to be washing | D．to be washed |
Lucy has ________ all of the goals she set for herself in high school and is ready for new challenges at university.
| A．acquired | B．finished | C．concluded | D．achieved |
For more than a decade, experts from across the globe ________ on the cure of the disease that way.
| A．worked | B．are working | C．have been working | D．were working |