NO needs for add the 去 in both of ur sentences. Because the 回 in sentences play the role of verb, and it has its own direction as u said"Getting away from the place where the speaker is now." 去 is more likely to be the direction word. But there are some verbs like '过' in Chinese, which do not have its own direction. Then it is necessary to add 来or去 as "过来"or“过去”。 PS: the sentence" I am driving back home today" should be "我今天开车回家"

If u want a answer in native Chinese. There are several ways to ask the questions above. 1. "Which kind of fruit is the freshest?" -请问哪种是最新鲜的水果？ -请问最新鲜的水果在哪儿？ -最新鲜的水果是哪个？ 2."Which kind of fruit is the sweetest?" -哪种是最甜的水果？ -最甜的水果是哪种？ -哪种水果最甜？ Hope it is useful

are these sentences correct plz?

上午的时候我喝了茶。 我 要 一 元。二 百 美元。请 等。请 数 对 了。(I really do not know what do u mean) 

我喜欢唱歌（i do not know whether u mean that u like singing or that u like listening music）.

我离开家后一直待在办公室 。我 要 看电视和听音乐。 我喝茶和吃米饭。这是我爸爸他是老师。他现在我在办公室呢.

再见

当（到）中元节了, 你度怎么假日了（你怎么度过你的假日）?

到（cancel it）現在你去过的地方当中, 哪囯哪里是对你最最好的地方吗? 
上个中元节的时侯, 我跟我朋友去四囯和京都旅游了．
在德島县我们参加盆会舞了（阿波舞）．
并且在高知县驾皮艇海上遨游了．
又在京都我们观赏大文字送祖灵火．
过得了一个很快乐的节日：）

一位朋友是自香港来的．
她可以说普通话,粵语, 英语和一些日语．聪明啊!!
我想能认识更多世界各国友人, 而且扩大世界．

(En..I've learned a little about Japanese grammar,and I think I understand why u use grammar in this way...~But it is a little bit difference between the Chinese and Japanese grammar~Please be care of the tiny differences~)