Đáp án C
(to) be in time: đúng lúc, kịp giờ
Các đáp án còn lại:
A. about time: đến giờ
B. at time không có nghĩa (at times: thỉnh thoảng)
D. behind time: lạc hậu, lỗi thời
Ann's encouraging words gave me _________ to undertake the demanding task once again.
In the US the first stage of compulsory education _________ as elementary education.
The local people insisted that the road_________50 cm more so that, in case of flood, they still can travel on it.