I doubt whether he can ______ his efforts much longer as he looks very tired.A、k

游客2023-07-21 44

问题 I doubt whether he can ______ his efforts much longer as he looks very tired.

选项 A、keep up
B、keep on
C、keep in
D、keep at

答案 A

解析 keep up“坚持，维持”；keep on“继续”；keep in“抑制”；keep at“坚持”。

转载请注明原文地址:http://tihaiku.com/zcyy/2855555.html

相关试题推荐

随机试题

最新回复(0)

Thereisapopularbeliefamongparentsthatschoolsarenolongerintereste