can cause high blood pressure and hearing problems.
| A．Air pollution | B．Water pollution | C．Light pollution | D．Noise pollution |
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 |
—How long does it take you to get to the hospital?
—.
| A．5 kilometers | B．Every day | C．By bike | D．About an hour |
- Are they soccer with the school team on Wednesday?
- No, they have to go to a party.
| A．played | B．playing | C．play | D．to play |