We should always be _________ the people who have helped us in our lives.
| A．thanks for | B．thankful for |
| C．thanks to | D．thankful to |
______evening, Robert kept playing games on the computer.
| A．All | B．The all | C．The whole | D．Whole of the |
The baby has only two______.
| A．tooth | B．tooths | C．teeth | D．teeths |
I often help my mother _______ clothes.
| A．wash | B．washing | C．washes | D．washed |
—Your father is sleeping now. Could you please ______ the CD player ?
--OK, mum.
| A．closed | B．open | C．turn on | D．turn off |
Don’t get stressed _____. It will make you sick.
| A．out | B．in | C．on | D．ill |