We must stop _____down trees if we don’t want a world without them.
| A．cut | B．to cut | C．cutting | D．cuts |
Amy couldn’t stop _________ when her friend told her the funny joke.
| A．to laugh | B．laughing |
| C．Laughed | D．to laughing |
It’s exciting to see the huge glass ball _________ through the darkness.
| A．falls | B．to fall | C．falling | D．Fell |
My uncle _____ Germany on business many times.
| A．has been on | B．has gone to |
| C．has been to | D．has been in |
Nanjing will need _________ volunteers for the 2016 Summer Youth Olympic Games.
| A．three thousand of | B．thousands of |
| C．thousand of | D．three thousands |
You can see the Little Mermaid in _________.
| A．France | B．China | C．Denmark | D．America |