--The plane is due to take off at 7∶50 from the airport.

    --________ we fail to arrive there in time?

    A. What if        B. As if             C. Even if          D. Only if

 –The plane is due to take off at 7:50 from the airport.

–________ we fail to arrive there in time.    –Try to take another flight then.

—The plane is due to take off at 7:50 from the airport.

---______we fail to arrive there in time?

A.What if 　　　　 B.As if 　　　　　 C.Even if 　　　 D.Only if

---The plane is due to take off at 7∶50 from the airport.
---________ we fail to arrive there in time?

1. A.
   What if
2. B.
   As if
3. C.
   Even if
4. D.
   Only if

--The plane is due to take off at 7:50 from the airport.
--________ we fail to arrive there in time.    

--Try to take another flight then

1. A.
   What if
2. B.
   As if
3. C.
   Even if
4. D.
   Only if