— What's wrong with your uncle?
— We're sure _______ something is wrong with him, but we doubt _______ the disease can kill him.
| A．if; whether | B．that; that |
| C．whether; if | D．that; whether |
A group ofare playing beach volleyball.
A、child B、children C、woman
—？
—They are reading books.
A、What do they do
B、What did they do
C、What are they doing
His job is funkind of dangerous.
A、but B、or C、and
---I haven't seen Jack for three days. Is he ill?
---_______. His mother told me that he was in hospital.
| A．I am afraid so | B．I hope not |
| C．I hope so | D．I am afraid not |
--- How _______ is it from Xi'an to Dunhuang?
--- It's less than 3 _______ flight.
| A．long; hour's | B．far; hour's |
| C．long; hours' | D．far, hours' |