Mike replied, with a big smile, “Oh, you_______ to worry about them.”

Would you like_________Shijing Hill with us next Sunday afternoon—I will go with you unless my mother _________me．

Is there a supermarket near here—______.You can take No.15 bus there.

book is ______ more useful for usstudents.” “Yes, but it is _______ too difficult.”

ience Museum, ____________ we visitedduring a recent trip to Britain, is one of London’s tourist attractions