Learning to speak Chinese is a challenge, for it is often difficult for one foreigner to make himself easy________.
| A．understand |
| B．to understand |
| C．understood |
| D．understanding |
—when has the country been open to international trade? —1978，I suppose.
| A．Since | B．In | C．From | D．After |
With the rapid growth of population, the city ____ in all directions in the past five years.
| A．spreads | B．has spread |
| C．spread | D．had spread |
----I wonder if you could go with me to the cinema.
----Don’t disturb me. I ____ a composition all the morning and haven’t finished yet.
| A．write | B．was writing |
| C．have written | D．have been writing |
I ____ to send him a telegram to congratulate him on his marriage, but I ____ it.
| A．hoped, hadn’t managed | B．has hoped, didn’t manage |
| C．hope, don’t manage | D．had hoped, didn’t manage |
----I’m sorry, but there is no smoking on this flight. ----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |