When the little boy someone coming upstairs, he stopped .
A. heard; to cry B. heard; crying C. listened; to cry D. listened; crying
She found ___ hard to finish the work by herself.
A. that B. it’s C. it D. this
— did you get there?
— By a taxi.
A. How; taking B. How; take C. How; took D. What; taking
—Would you like to visit Shantou City with me this summer vacation?
—No, thanks. I _______ it before. Besides, it's hot and humid there in summer.
A. have visited B. visited C. will visit D. visit
I don’t remember when and where I this book .
A. buy B. have bought C. will buy D. bought
What will you do if it _____ tomorrow?
A. will rain B. is raining C. rains D. isn't rain
