They are twin sisters. They have something ______common. A. in B. of C. from
You're supposed ______ your room up before you go out.A. to clean B. clean C. cleaning
All the students in the classroom do their homework ______.A. enough careful B. careful enough C. carefully enough
—Whose room is this? Is it the______? —Yes, it is ______.A. twins'; Tom and Tim'sB. twin's; Tom's and Tim'sC. twins'; Tom and Tim
—Many people talk about "Didi". I really wonder ______.—You call to order a taxi through it on your mobile phone easily.A. how can I use themB. who uses them mostC. what they are used for
—How far is it from Beijing to Haikou?—It's a______ flight from Beijing to Haikou.A. 3-hour-long B. 3 hours long C. 3 hours' long