Question 15. If our teacher were here now, he ______ us with this difficult exercise.
A. helps B. would help C. will help D. has helped
Question 16. Her mother, ______ has been working for thirty years, is retiring next month.
A. which B. that C. whom D. who
Question 17. The doctor said that the patient was ______ good progress thanks to intensive and continuous treatment.
A. causing B. getting C. making D. catching
Question 18. Nobody knows what the ______ of the explosion was.
A. reaction B. reason C. cause D. source
Question 19. She gave him a _______ wallet on his birthday.
A. small leather brown B. small brown leather
C. brown small leather D. leather small brown
Question 20. It’s cold outside. _______ your coat.
A. put down B. Put off C. Put on D. Put into
Question 21. The facsimile ______by Alexander Bain in 1843.
A. was invented B. has invented
C. has been invented D. invented
Question 22. We don’t allow you ________ in our house.
A. to smoke B. is smoking C. smoke D. smoked
Question 23. The flight to Ha Noi was delayed for twenty minutes _______ the weather was bad.
A. because B. in spite of C. because of D. although
Question 24. When I went out, the sun _______brightly.
A. is shining B. shone C. was shining D. shines