Do you need any help with the box? —No, thank you. I can _____ to make it.

The Dongying-Hainan airline for about 5 months. I have taken the flights three times.

If (如果) he isn’t at school. Please call me _______ 453-7868. [ ]

If you don’t know the word, you can _________ in the dictionary.

Eight ________ students in our school are from countryside.