I wonder how he could ______ not handing in his math exercises yesterday, for his math teacher is always strict with his students.
----Mum, have you seen my mobile phone?----- _______ you bought last week? I’m afraid I haven’t seen ________.
It was __________she was injured in the accident _______ she didn’t come to the party yesterday.
Martial Art Films are supposed to be educational as well as ______.
I don’t think he is ______ to come to our help when we get into trouble.
Tom ________ in the library every night over the last three months.