Since I knew how hard the life they lead is, I have understood ____ they need so much money.
| A．how | B．why | C．whether | D．when |
Turn off the tap please. The water .
| A．was wasted | B．wastes | C．is wasting | D．is wasted |
---I hope you enjoyed the film last night.
---How on earth do you know I went to a film? I you.
| A．won’t tell | B．didn’t | C．haven’t told | D．don’t tell |
As far as we know, Tom spends at least as much time watching TV as he .
| A．does writing | B．writes | C．writing | D．does to write |
. Going out for tea with friends increasingly popular during the past twenty years.
| A．becomes | B．became | C．has become | D．had become |
Key: C
I can guess you were in a hurry. You your sweater inside out.
| A．had worn | B．wore | C．are wearing | D．were wearing |