【单选题】
实验室的观察有严密得计划,有详细的观察指标体系,对观察情境有较严格的要求,有利于探讨事物内在的
【单选题】
The number of people invited ____fifty, but a number of them _____absent.
【单选题】
The box is _____what I saw in the shop.
【单选题】
They won’t allow us ________ at this beach.
【单选题】
He lives in a village _____there are a lot of trees.
【单选题】
In the past he often made his sister___, but now he is often made __by his sister.
【单选题】
I`m sure the red team will ______the game.
【单选题】
The reason __he was absent from the meeting was _his car broke down on the way.
【单选题】
Is this factory ______you visited last week?
【单选题】
What do you think _____solve the problem ?