英语选择1、He is looking forward_______his thesis.Ato writeBto wr

英语选择
1、He is looking forward_______his thesis.
Ato write
Bto writing
Cin writing
Don writing
2、The problem is_______by pollution.
Acaused
Bbecause
Cdue
Dbecause of
3、She comes from_______People's Republic of China.
Aone
Ba
C不填
Dthe
4、I started looking after other children_______parents went out to work.
Awho
Bwhich
Cwhose
Dthat
5、He has_______four successful books.
Awrote
Bwritten
Cbeen writing
Dwriten