как правильно?прошу помогите.
1.Last weekend my family (spent/spend) in the park
2.George (prefers/is prefeerring) Christmas to New Year
3.I think next Saturday we (will go/are going) a barbeque picnic
4.they (have already bought/ already bought) all products for our birthday party
5.Look!They (are running/run) a sack race