Exercises One

　　　1. I ______ something unpleasant ; they must be preparing hydrogen sulphide.
　　　 A. am smelling　　　　 B. have been smelling
　　　 C. have had smelled　 D.smell

　　　2. While Peggy______ , her brother is playing records.
　　　 A. reads　 B. is reading　 C. has been reading　 D.has read

　　　3. They ______ us since five o'clock this morning until now.
　　　 A. are helping　 B. have helped　 C. help　 D.have been helping

　　　4. I______ the accident as if it were yesterday.
　　　 A. am still remembering　 B. have still remembered
　　　 C. still remember　 D.have still been remembering

　　　5. "______ your best? It's not satisfactory. I'm afraid you will have to do it again."
　　　 A. Do you try　 B. Have you tried
　　　 C. Were you trying　 D. Have you been trying

　　　6. "There she ______ ! We needn't wait any longer."
　　　 A. comes　 B. is coming　 C. has come　 D.has been coming

　　　7. I ______ much of the book but I don't find it interesting.
　　　 A. am reading　 B. read　 C. have read　 D.have been reading

　　　8. Miss Lee______ about the food she has at lunch.
　　　 A. complains always　 B. has always complained
　　　 C. is always complaining　 D. has always been complaining

　　　9. If it ______ tomorrow, the match will be postponed.
　　　 A. is raining　　 B. has rained
　　　 C. does rain　　 D.rains

　　　10. Look at him sneezing; he ______ a bad cold.
　　　 A. has　　　　　　 B. has had
　　　 C. does have　　　 D. is having