Câu hỏi trắc nghiệm (5 câu):
-
- A. provides
- B. shows
- C. allows
- D. prevents
-
- A. print
- B. printing
- C. printer
- D. blueprint
-
- A. have yet tested
- B. have already tested
- C. have performed
- D. have done
-
- A. produces
- B. produced
- C. is produced
- D. has produced
-
- A. become
- B. becomes
- C. have become
- D. has become