The rain ________．We can see many ________ of water． A: A．dropped；drop B: B．drops；drops C: C．drops；dropped D: D．dropped；drops

( )65. A. dropped away B. dropped out C. dropped off D. dropped in A: A. dropped away B: B. dropped out C: C. dropped off D: D. dropped in

Some students ________ school due to financial difficulties. A: dropped on to B: dropped in at C: dropped out of D: dropped off from

Bill Gates ______ of Harvard two years into his college education to found one of the world's most successful business – Microsoft. A: dropped in B: dropped on C: dropped out D: dropped off

•My wallet is nowhere to be found. I _________ in the store. A: must drop it B: must have dropped it C: should have dropped it D: ought to have dropped it

It is nowhere to find my bag. I______it when I was on the bus. A: had dropped B: must drop C: should have dropped D: must have dropped

My wallet is nowhere to be found. I ______ when I was on the bus. A: must drop it B: should have dropped it C: must have dropped it D: had dropped it

My wallet is nowhere to be found. I（）when I was on the bus. A: must have dropped it B: must drop it C: should have dropped it D: have dropped it

My watch is nowhere to be found. I it when I was on the bus. ( ) A: have dropped B: must have dropped C: must drop D: can’t have dropped

I my wallet when I was shopping in the store(). A: must have dropped B: B should have dropped C: could drop D: ought to have dropped