-- May I use your mobile phone, Meimei? --Sorry, I _________ it at home.
At first, we didn’t know _______to do.
Shanghai is larger than ___________in Jiangsu.
The ______ of living areas makes wild animals become fewer than before
----How did he finish the work? ---- I hear that he did it __________
There are advertisements on Channel 7 than on Channel 8.