Frank's dream was to have his own shop ________ to produce the workings of his own hands.
A.thatB.in whichC.by whichD.how在线课程B
解析：
此题意为“弗兰克的梦想是拥有一家展现他自己的经营模式的商店”。显然，_{____}to produce the working of his own hands是定语从句，说明shop的具体情况。而to produce the workings of his own hands是发生在这个shop中的，因此应该用in which，也就相当于in the shop，故选B。