Hello, I _________ you _________ in London. How long have you been here?
| A．don’t know; were | B．didn’t know; were |
| C．haven’t known; are | D．hadn’t known; are |
Some people are worrying about the possibility ________ mobile phones could be responsible for a range of illnesses, from rashes(皮疹) to brain tumors．
| A．that | B．why | C．how | D．whether |
— Would you mind my coming over and having a look at your new garden? My little son’s curious about those roses you grow．
—________．You are welcome．
| A．Yes, I do | B．Never mind | C．Yes, please | D．Not at all |
It is the _________ in Britain that young people often do not shake hands when they meet someone for the first time.
| A．custom | B．habit | C．hobby | D．favour |
Rose found her toy bear _______ under the chair.
| A．hiding | B．to hide | C．having hidden | D．hidden |
As we joined the big crowd, I got ________ from my friends.
| A．lost | B．separated | C．spared | D．missed |