The engineer ______ my father works is about 50 years old.

I was writing a report last night; ________ I would not have stayed up late.

Countrylifeisbetterthancitylife________itoffersfreshairandnoiselessenvironment

Theengineer______myfatherworksisabout50yearsold.

These two alarm clocks are normally set together, but now they have been reset a few hours _________.