Only when _______ home_____ that he had left his bag in the taxi he had taken.
| A．he returned; did he realize | B．did he return; did he realize |
| C．he returned; he realized | D．did he return; he realized |
Under no circumstances to the teacher.
| A．is this the first time he has lied | B．this is the first time he has lied |
| C．is this the first time has he lied | D．this is the first time he is lying |
Hardly ______ to the airport ______ he was surrounded by many journalists and fans.
| A．the famous singer had got;" when | B．the famous singer got; then |
| C．had the famous singer got; when | D．did the famous singer get; then |
Never before in China __________ so carefully concerned about the food safety.
| A．people have been | B．have people been | C．are people | D．people are |
If you don’t go to the cinema weekend ________.
| A．nor do I | B．nor will I | C．so do I | D．so will I |
I have been working with Lily for years, and never before her so serious!
| A．I found | B．I have found | C．did I find | D．have I found |
-- We could invite John and Barara to the Friday night party.
--Yes, ____? I’ll give them a call right now.
| A．why not | B．what for | C．why | D．what |
Only then ______ how much damage had been caused.
| A．had she realized | B．she realized | C．did she realize | D．she had realized |
—How much do you know about the 3D film technology?
—A little. Not until _______the hot movie Avatar _______ some about it.
| A．did I see; did I begin to learn | B．I saw; I began to learn |
| C．I saw; did I begin to learn | D．did I see; I began to learn |
His suggestion made me angry, but _______.
| A．making others happy | B．to make others happy |
| C．others happy | D．with others happy |