说明理由
1.It will be sad not to see you during the Christmas holiday ______ families get together.
A.before B.when C.that D.since
2.A new study shows anger may help people reduce the negative impacts ______ stress and help you become healthier.
A.in B.of C.on D.at
3.-Do you like this part of the town,the so-called desired area?
-On the contrary,it's the ______ area that I want to visit in town.
A.best B.first C.last D.least