--Hi, Tracy, you look tired.

   --I am tired. I________ the living-room all day.

A. painted                        B. have been painting    

C. had painted                    D. have painted

----It's too late now. I think it's time for me to leave. 

---- ____.

A. Good idea   B. Good night  C. Good evening   D. Really

Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.

A. which           B. what             C. that             D. when

—Can I help you?

—I want to buy a blue tie to　　  my shirt.

A.fit　　　　　B.match　　　　C.suit　　　　D.be fit for

Oh,what a pity!It________ so easy for me to bring those photographs.I wanted to show you,but I’ve left them at the table at home.

A.would have been                          B.would be

C.had been                                 D.was

—He was nearly drowned once.

—When was _________?

— ________was in 1998 when he was in middle school.

A.that;It              B.this;That              C.this;It          D.that;This

As senior three students,it is the most important to                    a good state of mind in face of failure.

A.keep up

B.keep on

C.keep out

D.keep away

Five apples are not enough for them, they need ____.

A. three another    B. three other     C. three more  D. three more than

If we expect ________ much cleaner world, we should attract ________world’s attention to protect the world.

A. a; a                     B. a; /                 C. a; the               D. the; /

I tell him everything, for he is a good friend of me.