1.Since 1886 the statue __________(be)a symbol of liberty.
2. The mother entered the room quietly so as (not wake up ) the baby.
3.if they (take)him to hhospital at once,he would not have died.
4.By the ed of the last year.the new swimming pool____(build).
5.She went across the street to avoid _______(meet)him.
6.I prefer to stay on the bus rather than ____(get) off here.
7.The oarfish was found _______(be)over fifteen feet long.
8. _______(give)more money,I would have been successful too.
9。The road is（A clear/B clean），so we can aross now。
10。The car is ______now,so we must have it reqaired.
A.in good order B out of order C put in order D on order
11.The speed boat slowed down because the petrol
A.nearly all used up b. had nearly all used up c.had nearly allbeen used up D will have all used up
12._____rapily in the darkness,the man changed into the dead man's clothes.
A He worked B Working C Worked D Had worked
13.You ____go now.It's getting late
a. had rather b. would rather c. would better D.had better.

1.has been. 【现在完成时表示对现在仍有影响的事件。】
2. not to wakeup 【to do表示动作的目的。】
3.had taken 【过去完成时表示过去的过去。】
4.had been built
5.meeting 【avoid doing sth.】
6.to get 【prefer to do sth. than doing sth.】
7.to be 【be found to do sth.】
8. given. 是条件状语从句的省略形式
9。A
10。B 【out of order坏了。】
11.A.【停下的同时用完了，过去时】
12.B。【ing用作伴随状态。】
13.D【had better do,最好做某事】