In a sport team each player has a clear role, and there are few occasions ______ members are confused or uncertain of their roles.
15.You can go with them if you _______.
14.Only by this means _______ complete the task ahead of time .
13.Early this year the government decided to _______ the devement of agriculture.
12.---Iwish I ________ the meeting . ----But you can’t .
11.________ with fire in the garden ,the boy got ________.