______ label to each of the trees, with detailed introduction of their features, and visitors will know more about them and how to protect them.
| A.To attach | B.Attach | 
| C.Attached | D.Having attached | 
----I am sorry to tell you that I can’t arrive on time as planned due to the delay of the flight. You have to look after your brother yourself tomorrow.
 ----Don’t worry, uncle. There’s.
| A.no exception | B.no wonder | C.no doubt | D.no hurry | 
Mother asked the young kid with his toy car.
| A.what the matter was | B.what was the matter | 
| C.what the matter is | D.what is the matter | 
Can you tell me ?
| A.how good is his spoken English | B.how well his spoken English is | 
| C.how well he speaks English | D.how good he can speak English | 
I’m considering a computer, which is considered a great help to my work.
| A.to buy, being | B.buying, to be | C.buy, being | D.to buying, to be | 
Above one third of the population in Beijing and Shanghainetizens, but in poor
 areas, only three or four percent online.
| A.is, is | B.are, are | C.is, are | D.are, is |