Hold on to your dreams, _____ one day they may come true.
| A．and | B．but | C．so | D．or |
—Who is that woman?
—Liu Yang. She’s ________ astronaut. We are proud of her.
| A．a | B．/ | C．an | D．the |
I don’t know _____ he will come tomorrow or not ,_______he comes , I’ll tell you.
| A．if; whether | B．whether; whether |
| C．if; that | D．whether; if |
--What are you doing here ?
--We are _______a way to have a cheaper holiday .
| A．looking up | B．cleaning up |
| C．working out | D．coming out |
--Did you see a girl in red pass by just now?
--No , sir . I _______a magazine.
| A．read | B．am reading |
| C．was reading | D．would read |
-- Why do you feel so unhappy?
--Bad luck . When I arrived at the airport, my flight __________.
| A．took off | B．would take off |
| C．was taking off | D．had taken off |