问题
u swim in a river or lake, be sure to investigate is below the water surface. Often there are rocks or branched hidden in the water.
A:what
B:who
C:that
D:whoever;
B:who
C:that
D:whoever;
正确答案是：
同类题型
up D．make up A【解析】试题分析：考查词组辨析：
The weather turned out to be fine yesterday.I________the trouble to carry the umbrella with me.
John promised his doctor he _____ not smoke and he has never smoked ever since. [ ]
Last summer we visited the West Lake, ______Hangzhou is famous in the world.
That man is the richest ________ pleasures are the cheapest.