排列顺序

解説

Step 1 – find the opener: it must introduce the person and cannot start with a connector or a pronoun. C has the full subject “我的越南室友阿芳”, so it comes first. A starts with “但是” (but) and uses “她”, B starts with “所以” (so) – neither can open. Step 2 – “但是” contrasts with the previous sentence: she loves milk tea but “牙疼得很厉害” (has a bad toothache), so A follows C. Step 3 – “所以” gives the result: the doctor told her to eat fewer sweets, so B comes last. Order: CAB.

解説

Step 1 – spot the sequence “首先……然后……最后……” (first… then… finally…). It is the strongest signal: the “首先” sentence opens, the “最后” sentence closes. Step 2 – B has “首先” and the subject “新员工” (new employees), so it comes first. Step 3 – C has “然后” (then) and “他们”, which refers back to the new employees, so it is in the middle. Step 4 – A has “最后” (finally) and closes. Order: BCA. Note that A has “大家”, but “最后” rules it out as an opener.

解説

Step 1 – the opener: A names “小高” and sets the situation (ten hours a day at the computer). C uses the pronoun “他” and B is the doctor's advice to “他”, so neither can open. Step 2 – the natural sequence is situation → symptom “眼睛常常又干又疼” (dry, sore eyes) → the doctor's advice. Step 3 – putting B before C would have the doctor giving advice before any problem. Order: ACB. “每……就……” in B means “every time…, …”.