——Where _______ the books? ——_______ on the bed.is; It’s B. are; TheyC. are; They’re D. is; It
I hope my friends _________ my party this Saturday.
The Jiangs have lived in the city of Nantong since__________.
I found _______ difficult to work out the problem.
The Greens used to live in London and now they ________ in Beijing.
The train was travelling _______ low speed at that time.