问题
选择题
If you absolutely want to get the truth of Malaysia Airlines MH370, _______ wait until the timing is right.
A．at best
B．at all
C．at least
D．at most
答案
C
题目分析：A. at best多， 充其量，顶多，B. at all根本，C. at least至少，D. at most最多，句意：如果你真的想得到马航MH370的真相，至少等到时间是正确的。所以选C。