Don’t open the door to strangers；it’s not________．
| A．safe |
| B．polite |
| C．convincing |
| D．embarrassing |
My mother________in the kitchen now．
| A．cook |
| B．cooks |
| C．is cooking |
| D．cooked |
Listen！Someone________an English song now．
| A．sings |
| B．sang |
| C．is singing |
| D．was singing |
________weather we have today！
| A．What a fine |
| B．What fine |
| C．How fine a |
| D．How fine |
It is very________outside．People are wearing warm clothes．
| A．cloudy |
| B．hot |
| C．cold |
| D．sunny |
-Can you answer the door，Jim？I________the dishes．
-I'm coming，Dad．
| A． | do |
| B． | did |
| C． | have done |
| D． | am doing |