Mary never does any reading in the evening ,______.
| A．so does John | B．John does too | C．John doesn’t too | D．nor does John |
Maybe you have been to many countries , but nowhere else ___such a beautiful palace.
| A．can you find | B．you could find | C．you can find | D．could you find |
I failed in the examination last term and only then ____ the importance of studies.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
Only when your identity has been checked , _________.
| A．you are allowed in | B．you will be allowed in |
| C．will you allow in | D．will you be allowed in |
The old couple married for 40 years and never once____ with each other.
| A．they had quarreled. | B．they have quarreled |
| C．have they quarreled | D．had they quarreled. |