When I tried to find _________that prevented so many people from taking part in the program, it seemed to me that there were two main reasons．
| A．why it did | B．that it did | C．what it was | D．why it was |
—This is the first time I ______ my first picture with my own hands.
—It is time that you ______ a picture for me.
| A．took; took | B．have taken; took |
| C．took; will take | D．will take; have taken |
---- I’d like to buy a ticket to Tokyo. Are there any tickets left?
---- _______. I’ll check it for you right now.
| A．Could you wait a minute, please? | B．I don’t know |
| C．All right. | D．I’m sorry there is none left. |
---How did your students express their thanks to you on Teachers’ Day?
---A gift together with many flowers ______ sent to me.
| A．is | B．are | C．were | D．was |
Only when I left for America ____________ how much I missed my parents.
| A．I realized | B．did I realize | C．I had realized | D．had I realized |
Tina apologized ______ her mother _________ breaking her favourite necklace.
| A．for; to | B．to; for | C．at; for | D．to; about |