Hi,
I hope you are representing Contractor side and you want to write a email to your Client regarding questions in Contract Agreement ? Am I right ? If so please refer the following template.
You can modify as per your requirement. In future at least you can try to prepare a draft and post here if you feel the same need fine tuning. Anyway now refer the draft as below
Draft
Dear Mr/Ms._____
We were pleased to receive your Contract Agreement. Thanks for the opportunity to work together on your project. On a review of the same we need some clarifications on few items. Before we start the work, for better understanding a face to face meeting would be really appreciated. Kindly let us know your availability & convenient date and time so that let us meet by person at venue of your choice and get things clarified.
Look forward to meet you soon.