If you had been more careful, you______have made so many mistakes. A: won't B: wouldn't C: may not D: mustn't

You have been to India, ____________? A: haven't you B: have you C: have been you D: you have been

This book will show you _______ can be used in other contexts. A. how you have observedB. how what you have observed C. that you have observed D. how that you have observed A: how you have observed B: how what you have observed C: that you have observed D: how that you have observed

Contact me at once _______ any problem. A: you should have B: have you C: should you have D: you have

______ a pleasant journey on your way home! A: May you have B: Must you have C: Do you have D: Will you have

If you have no siblings, it means you have no _________.

—My feelings for you have not changed. —But you have changed. You are not as you . A: are B: were C: will be D: have been

--___________to the United States? A: Have you been B: Have you gone C: Did you go D: Have you went

1.“_________ you __________ (have) lunch ?”“Yes.” “When ________ you __________ (have)it?” “I __________ (have) it at

If you have enough money,what ( )? A: will you buy B: would you buy C: would you have bought D: will you have bought