1.Can I join your club,Dad?
You can when you______a bit older.
a.are b.were. c.will be d.being

2.DO you know anyone in paris?
No,but I'll make friends once________
a.I'm settled b.I'll be settled
c.I've been settled d.I had settled

3.The telephone________four times in the last hour,and each time it________for my roommate.
a.has rung;was b.was ringing is
c.had rung;was d.rang;has been

4.DO you have his telephone number?
He_______me his telephone number but I'm afraid I______it.
a.gives;lost b.gave;have lost
c.had given;lost d.has given;have lost
(请帮助具体分析,谢谢)

1. A 2. A 两题都在考察时间和条件状语从句用一般现在时表将来时的用法。第一题中when引导时间,第二题中once引导条件状语从句。
1题意为“你大一点时可以加入俱乐部。”
2题意为“我一到巴黎就能交朋友了。”
3. A 通过in the last hour这刚过去的一段时间内可以推断时态为现在完成时。（in the past ...也用现在完成时）
each time“ 每一次”属于具体的过去时间状语，应用一般过去时。
4. B 现在完成时只能强调该动作对现在即说话时的影响和结果，如果影响和结果现在存在用现在完成时，不存在就用一般过去时。
不知我说的对不对？