—How many students are there in the classroom?
— ．They are all in the lab．
| A．Some | B．None | C．A11 | D．Neither |
I feelhard to work out this problem.
| A．this | B．that | C．its | D．it |
Whatyou do if you won in the lottery?
| A．shall | B．would | C．will | D．are |
If ittomorrow, we won’t go to the park.
| A．rained | B．rains | C．will rain | D．raining |
I had a little troubleEnglish grammar.
| A．learn | B．learned | C．learning | D．to learn |
I won’t leave the classroom until my homework.
| A．finishes | B．is finished | C．will finish | D．are finished |