-_______ can the batteries (电池) keep these cool iPhones and iPads working?
- For about ten hours.
| A．How much | B．How many |
| C．How long | D．How often |
I bought some CDs for my friends and they _____ me 30 dollars.
| A．spent | B．paid | C．cost | D．used |
There _____ many animals in that zoo.
| A．used to | B．used | C．used to have | D．used to be |
---How long have you ______ the map?
---For two years. I ______ it in the market two years ago.
| A．bought; had | B．had; bought | C．had; had | D．bought; bought |
My friend made me ______for a long time and it made me very _______.
| A．wait; angrily | B．to wait; angry | C．wait, angry | D．to wait; angrily |
You are supposed to ______ instead of ______ when you are in Brazil.
| A．kiss; bowing | B．bow; kissing | C．kissing; bowing | D．bowing; kissing |