Space Online ___________ shopping for glasses online so convenient, you will
wish you had found us earlier.
(a) to make
(b) makers
(c ) has made
(d) making
此題解答給C，但此題看似沒有連接詞，覺得應該(d)好像可以
但不是很確定，想問高手們的意見，謝謝。