People have lots of problems living in the central Australian desert, ____ the lack of water is the most serious one.
-----Will you please help me to take care of my cat when I go out? ----- ________.
________with so much trouble,we failed to complete the task on time.
When it was his turn to deliver his speech,________,he walked towards the microphone.
In order to meet the demands they had to________production.
After he retired from office,Royers________painting for a while,but soon lost interest.