The monkeys look sweet,but they _________ be very naughty.
.________ the report, I handed it to John, but he said that George was the person to send it to.
.Finally they decided to go shopping ________ the rain.
____________ the Roman numerals, the Arabic numbers are rather simple to use.
___________ a reply, he decided to write again.
This is the material ________ in the laboratory tomorrow morning.