I can’t decide _____.
| A．what to do | B．how to do | C．what should I do | D．how I should do |
Could you please ________?
| A．do the dishes | B．doing the dishes |
| C．to do the dishes | D．did the dishes |
Dropping litter ______ never allowed in our city.
| A．don’t | B．are | C．will | D．is |
It’s better ____ your voice down in public places.
| A．keeping | B．to keep | C．keeps | D．keep |
-Would you mind my opening the window?
-__________.
| A．No, not at all | B．Sorry, I’ll do it right away |
| C．Yes, please | D．I’ll be glad to |
EverydayIspendtwohours______myhomework.
| A．finishingtodo | B．finishingdoing |
| C．tofinishtodo | D．tofinishdoing |