Not until they left school how much their teachers loved them and helped them.
A．they realized B．did they realized
C．the would realized D．had they realized
It’s nice to see you again. What since we last met?
A．have you done B．had you done
C．have you been doing D．did you do
--- Shall we take the 10:20 train?
--- No. If we took that train, we too late.
A．arrive B．arrived C．will arrive D．would arrive
--- I had thought he would be nervous in this speech competition, but he turned out to be calm.
--- He quite enough preparation for it.
A．should do B．must do C．should have done D．must have done
The language used in advertisements differs from used in ordinary readings.
A. which B. what C. that D. it
Loulan City is not at all a traveler who has never seen the desert before can expect.
A. that B. what C. which D. where
