根据句子意思，选括号中适当的词填空。

The box is ________ (heavy , heavier ) than that one .

根据句子意思，从方框中选出恰当的词，并用其正确的形式填空。

My computer ________ down last night , but my brother ________ it at once .

根据句子意思，从方框中选出恰当的词，并用其正确的形式填空。

A ________ is 60 ________ .

根据句子意思，从方框中选出恰当的词，并用其正确的形式填空。

He was very ________ when he heard his dog die outside .

根据句子意思，选括号中适当的词填空。

There ________ (is , was ) a meeting last Monday .

根据句子意思，选括号中适当的词填空。

Zhang Ping is busy ________ (do, doing) his homework.

根据句子意思，选括号中适当的词填空。

I have ________ (buy, bought ) some English books .

根据句子意思，选括号中适当的词填空。

His sister ________ ( have , has ) stayed with us for two weeks .

根据句子意思，选括号中适当的词填空。

My father enjoys ________( listen , listening)to the music .

根据句子意思，选括号中适当的词填空。

You must be ________( care , careful )when you do your homework .