—Why don’t you take some exercise? Sitting before the computer is bad for your health. ---________, but I have to finish my work on time.
At the gate _____ a soldier _____ uniform.
The doctor warned Pat against smoking as soon as possible and _____.
–Jack is good at maths and doesn’t perform well in English. –_____.
It is these poisonous products _____ can cause the symptoms of the flu, such as headaches and aching muscles.
–Are you coming to Jeff’s party? –I’m not sure. I _____ go to the concert instead.