I’m _____ at sums than Jean, but better at history.
| A．more | B．less |
| C．worse | D．cleverer |
65.Is＿necessary to tell his father everything?
| A．it | B．that | C．what | D．He |
66. Is＿possible to fly to the moon in a spaceship?
| A．now | B．man | C．that | D．it |
67.I consider____ my duty to help you．
| A．it | B．this | C．that | D．its |
68 It was at four o'clock in the afternoon ____ he and his grandpa reached the museum in Guanghan.
| A．while | B．that | C．when | D．As |
69.I like ____ in the autumn when the weather is clear and bright.
| A．this | B．that | C．it | D．one |