I don’t know .A what to do it B how to do it C how to do D what should I do
Mary, along with her parents ________ Hainan for a week and they will come back soon.
That little boy preferred ________ out to play rather than ________ TV at home.
________ information! I hear you have finished writing a ________ report.
If you want to buy an expensive camera, we have several models for you ________.
He had ________ that he had difficulty finding a job.