_____ on everyday practice, progress in English is a goal which can be achieved.
. ----- I don’t have any change with me. Will you pay the fare for me? ------ __________.
There is a notice board at the gate of the construction, _______ reads: Keep out without permission.
Completing all the homework by the dinner, John felt very tired. He __________all day long.
Though working outside, he is always ________ about his aging mother at home.
-------The weather is terrible now; our earth is badly damaged!-------Yes. It’s urgent that everyone _________ spare no effort to do something to save our world .