根据句子的意思，用remain＆maintain的适当形式填空。

If you eat a balanced diet you will be able to ________ your beauty externally and good health internally．

根据句子的意思，用remain＆maintain的适当形式填空。

We are already doing so much to help older adults ________ healthy, independent members of our community．

根据句子的意思，用remain＆maintain的适当形式填空。

The two countries have always ________ close relations．

根据句子的意思，用remain＆maintain的适当形式填空。

In spite of their quarrel, they ________ the best of friends．

It ________　________　________　________(走着瞧)whether you are right．

根据句子的意思，用remain的适当形式填空。

Much ________ to be done．

根据句子的意思，用remain的适当形式填空。

There were only ten minutes ________．

He ________　________　________(本该)go back to Taiwan, but the earthquake prevented him．

He ________　________　________(被认为)go to the store．

We ________　________　________　________(不可以)smoke here．