Ⅰ.用所给词的适当形式填空
1．When ________(ask) why he was late，he went red.
2．Deeply ________(move) by the story，she began to cry.
3．He walked out of the house，________(follow) by his pet dog ________(name) Snoopy.
4．Even if ________(invite)，I won’t attend the evening party.
5．The house ________(paint) white，we like it better.
6．The ________(light) candle lighted/lit up the room.
7．When ________(travel)，you should take care of yourself.
8．________(see) the picture，I couldn’t help thinking of his good old days.
9．People are trying to make the once ________(pollute) rivers clean.
10．________(encourage) by the speech，the young people made up their minds to take up the struggle.
Ⅱ.单项填空
1．________from the top of the tower，the south foot of the mountain is a sea of trees.
A．Seen B．Seeing C．Having seen D．To see
2．The experiment shows that proper amounts of exercise，if________regularly，can improve our health.
A．being carried out B．carrying out
C．carried out D．to carry out
