—_______ you read the words in English? —No, I can’t. They are too difficult for me.

—I think the man over there must be Bob. -- It_______ be him. He has______ to Australia. 

E-Commerce ______ mislead customers at times even though it's more convenient and faster in general.

________I smoke   here ?----No. you can’t.

----I am really surprised that a policeman in his car __________ have hit several common pedestrians, killing one and injuring three.----Yes, If one __________ ask for trouble, what can we say?