My sister has some trouble ______spelling some of the words in American English, while I have some difficulty ________ my pronunciation.
Kate’s little brother kicked the ball to the river; she took great trouble to get in _______the river.
My brother was still studying _______into the night while I was _______asleep.
It was she that ________a sharp whistle, which makes ________possible for us to catch the thief.
Which city in England do you think may be called __________Shanghai of ________West?
I’d like Jane, _____Joan, to go to the farewell party on behalf of (代表) our class.