初中英语连词成句单选题

---I’ve heard some scientists have sent a spacecraft to Mars.
---Really? Has it arrived _____?
A already     B yet        C still            D ever

       all of us enjoy playing computer games,         we can’t spend too much time on them.

A．Although, but

B．But, /

C．Although, /

D．But, although

We had so much homework. I didn’t go to bed         I finished it yesterday evening.

A．after

B．until

C．when

D．but

It has been five years ____ I came to this school.
for  B. since C. whether  D. when

     Jack had a fever,       he finishing doing his homework yesterday.  

A．Although; but

B．But; although

C．Although; /

D．/;although

I meant to help him . ______， he didn’t accept my offer.

A．But

B．As a result

C．Therefore

D．However

Susan will not arrive at the airport on time _____she hurries up．
A．once          B．if                C．unless

-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

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