28. Listen, Mike. She_________have done it. She’s been with me at the shop all day.
I have no impression _______ he went home perhaps by bike.
It _______to John that he had left the door unlocked.
_______ Obama was elected president of the USA is a big success for the blacks in America.
It is reported that large amounts of locusts(蝗虫) _____ in their activity in the north now.
The actor pretends to be a fierce, bold man, but _____ he is timid and shy.