1. The machines were too expensive .....
A. to replace
B. replace
C. save
D. to save
2. The factory...... half of its workers with robots since last week
A. replaced
B. has replaced
C. avoids
D. has avoided
3. The France's transport system is one of the most ...... in Europe
A. comparative
B. comparatively
C. efficiently
D. efficient
Giúp em mấy câu trắc nghiệm với ạ
1. The machines were too expensive .....
A. to replace
B. replace
C. save
D. to save
2. The factory...... half of its workers with robots since last week
A. replaced
B. has replaced
C. avoids
D. has avoided
3. The France's transport system is one of the most ...... in Europe
A. comparative
B. comparatively
C. efficiently
D. efficient