It seems cloudy, you’d better take an umbrella_____.
A. in case B. in use C. in sight D. in vain
It seems cloudy, you’d better take an umbrella_____.
A. in case B. in use C. in sight D. in vain
A
考查介词短语辨析。句意：天似乎有云，你最好带把雨伞以防万一。in case“假设，以防万一”符合句意。B项“在使用中”；C项“看得见”；D项“徒劳”。