问题

Theprisonermadeseveral ______ efforts to run away from the prison, but failed every time. [ ]

A: curious
B:serious
C:sincere
D: desperate

正确答案是：

同类题型

Tom always feels it necessary that he ________English.

It’s already nine o’clock.Would now be a(n) moment to show the sides?—OK,go ahead please.

We’d better wait more minutes. I think Jeff will come soon,

Hardly any people believe that a（n）meeting will lead to an enduring love.

_____________ does your cat weigh — About 5 kilograms.