This is the day____ I will never forgetA that B when C on which D of which 这题是选that吗 可是一般出现时间不都用when引导吗

September 18 ,1931 is the day____ we will never forget This is the day____ I will never forgetA that B when C on which D of which 这题是选that吗 可是一般出现时间不都用when引导吗 September 18 ,1931 is the day____ we will never forget填什么? They spend the whole day____(plant) trees on the hill We will spend the whole day____(play)in the Greed Island为什么 The school day____(start) at 7.00 and our classes____(begin) at 8.00 this is the new This is the this is the THIS IS THE WAY This is the this is the last This is the This is the this is the RT... 1.-Do you really understand the answer?-No,I don't ____understand the answerA.quite B.very C.so D.too2.It was the most unluck day____.A.of my life B.so far C.all the time D.at the moment3.-Go for a picnic this weekend,OK?-____.I love getting close to .They will never forget the day____ they got married.A.which B.that C.at which D.on which What the hell is this?