I never doubt ______________.
| A．whether Tom has told me the truth or not |
| B．that whether has Tom told me the truth |
| C．that Tom has told me the truth |
| D．if Tom has told me the truth |
In fact, her persistance(坚持) is one of the ____ why Tu Youyou won the Nobel Prize.
| A．reasons | B．sayings | C．results | D．plans |
—Which of the two magazines will you take?
—I’ll take ____. One is for my sister and the other is for my brother.
| A．either | B．all | C．both | D．each |
Class Two, Grade Eight did ____ in the sports meeting last month. No class got ____ points than them.
| A．better; higher | B．better; highest |
| C．best; higher | D．best; highest |
It is said only three ____ of the students in our school ____ TV every day.
| A．percent; watch | B．percents; watches |
| C．percents; watch | D．percent; watches |
— ______ does Bob play tennis?
— Twice a week.
| A．How long | B．How far | C．How soon | D．How often |