The plane takes off at 6:00 p.m. So I have to arrive at the airport ________ 5:30 p.m. at the latest.
A after B. since C. until D. by
＿＿＿＿＿danger man is often much wiser than usual．
| A．In a time of | B．In the times of | C．In the time of | D．In time of |
Father went to his doctor for＿＿＿＿＿about his heart trouble．
| A．an advice | B．advice | C．advices | D．the advices |
He is＿＿＿teacher that all of us like him．
| A．a such good | B．such good a |
| C．a so good | D．so good a |
＿＿＿page of the book is torn and＿＿＿cover looks very old．
| A．The； the | B．A； a | C．A； the | D．The； a |
In China,＿＿＿bicycle is＿＿＿popular means of transportation(交通)．
| A．the； a | B．a；不填 | C．the； the | D．a； the |