_____ hard and you’ll succeed sooner or later.

A．Study	B．To study
C．Studying	D．Studied

Peter: Hi, Sally. Come and have a look at my photos.
Sally: Are these the photos you took in Africa, Peter?
Peter:   小题1:   Look, this is a wildebeest. It’s an animal in Africa.
Sally:   小题2:    
Peter: No, it doesn’t. It only eats grass.
Sally: Are there a lot of animals in Africa?
Peter:   小题3:  
Sally: Oh, this photo looks interesting. What are you doing there?
Peter:   小题4:  
Sally: Did you have a good time there?
Peter: Of course.   小题5:   

 

Several days has passed_______the air crash（空难） happened.
A.since                  B.after                C.as

— ____can we board our plane? — In twenty minutes.
A.How soon               B.How long             C.How often

— Would you mind my taking this seat? — ______.
A.Sorry, I can’t        B.No,not at all        C.It’s a pleasure

-When shall we go to the museum, this afternoon or tomorrow morning?
-_____ is OK. I’m free these days.

A．Both

B．All

C．Either

D．Neither

We have two rooms ______, but I can’t decide ______.

A．to live, to choose which one	B．lived, choose which one
C．to live in, which one to choose	D．live, which one

Many Chinese students think science subjects are ______ foreign languages.

A．more difficult as	B．less difficult than
C．much difficult than	D．so difficult as

-I hear Huang Gang made an English speech at the graduation ceremony yesterday.
-______ , and ______.

A．So he did, so did I	B．So did he, so I did
C．So he was, so was I	D．So was he, so I was

1 would rather _____at the hotel than _____out on the street．
A．stay；hang     B．stay；to hang     C．to stay：hang