1.That remains to be seen.
那件事不得而知.
2.We are taking action,but how effective it will be remains to be seen.
我们正采取行动,但所采取的行动到底有多大的效果还说不准.
3.It remains to be seen who will be the victor in the contest
谁将在这场比赛中获胜还得等著瞧
4.It remains to be seen whether he can turn over a new page.
还得看一看他是否能改过自新.
第二个句子错误；应改为：
My car needs repairing.或My car needs to be repaired.
need/want/require
注意：当 need,want,require,后面接doing表示被动；相当于to be done.
Your hair wants cutting. 你的头发该理了.
The floor requires washing.地板需要冲洗. 典型例题
The library needs___,but it'll have to wait until Sunday.
A.cleaning B.be cleaned C.clean D.being cleaned
答案A.need (实意) +n /to do,need (情态)+ do,当为被动语态时,
还可need + doing.本题考最后一种用法,选A.如有to be clean 则也为正确答案.