根据下面句子及所给汉语注释，在句子横线上写出空缺处各单词的正确形式。

I have never been to the sea, so I have difficulty ________(想象)how large it is．

根据下面句子及所给汉语注释，在句子横线上写出空缺处各单词的正确形式。

Susan said she ________(喜欢)water to milk in the past．

根据下面句子及所给汉语注释，在句子横线上写出空缺处各单词的正确形式。

Are people who work till 10 o'clock in the evening more ________(精力旺盛的)than those who stop at 5 o'clock in the afternoon?

根据下面句子及所给汉语注释，在句子横线上写出空缺处各单词的正确形式。

My sister was so careless that she made many ________(错误)ha the test．

根据句子意思，用括号内所给词的适当形式填空。

Halnan Island attracts large numbers of ________(visit)each year．

根据句子意思，用括号内所给词的适当形式填空。

If you are ________(fill)with confidence, you'll be happy all the time．

根据句子意思，用括号内所给词的适当形式填空。

Take three pills ________(two)a day after meals for a week．

根据句子意思，用括号内所给词的适当形式填空。

It's ________(sun)today．What about going on a picnic?

根据句子意思，用括号内所给词的适当形式填空。

He is not as ________(friend)to us as his sister．

根据句子意思，用括号内所给词的适当形式填空。

Plastic bags pollute the air, the land and the water and they will not ________(appear)for a long time．