单选题
33. "While the results have ruled out (approximately / couple / some) of the more serious possibilities…"
You contacted us earlier this month asking for the latest information (an / in / on) your medical examination. The results have come in and I am afraid I (had / has / have) some rather unfortunate news. While the results have ruled out (approximately / couple / some) of the more serious possibilities regarding your (condition / location / scenario), there are a few elements from your examination report that concerns us. Unfortunately, this means that we require you to (came / come / coming) back to the clinic for further testing.