Only when I left my parents for Italy ________ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
I set up e-mail addresses for my mum and dad ________ I could e-mail them regularly.
| A．now that | B．even if | C．so that | D．As though |
People just wonder ________ that makes the housing price so high.
| A．what it is | B．what is it | C．why it does | D．Why does it |
Jackie would like to buy an iphone 5 but _____ was available from that shop.
| A．none | B．nothing | C．no one | D．neither |
Before I left home, my mother taught me ________some simple dishes, such as noodles and garlic with vegetables.
| A．what cooking | B．how cooking | C．what to cook | D．how to cook |
In order to find the missing boy, the young couple all they can over the past twenty-four hours.
| A．do | B．did | C．have been doing | D．had done |