— ________ are they staying? —Two days.
| A．How many | B．How often |
| C．How long | D．When |
Do you want to be healthy? ______. Smiling can help you stay healthy.
| A．Smile | B．Smiling |
| C．To smile | D．Smiled |
If you know nothing about the famous program called Where are we going, dad?, you ______be living in a box!
| A．would | B．can |
| C．must | D．need |
Ted will never forget the days he spent with his grandmother in the countryside.
| A．when | B．that |
| C．what | D．how |
The underlined part in the word “heard” is pronounced as __________.
| A．/ iə / | B．/ ə: / |
| C．/ə/ | D．/ əu / |
They told me it would be cheap, but , it cost me nearly 5,000 dollars.
| A．in fact | B．for example |
| C．of course | D．by the way |