III. 选用方框内所给的短语并用其适当形式填空（每个短语限用一次）。

get ahead, stand out, rely on, make sure, take the form of, hold the key to, keep in mind 1. Our staff will do their best to ________ you enjoy your visit.

2. The best way to ________ is through hard work.

3. Tourism is vital for this country's economy and it ________ its recovery.

4. ________ your assistant to do his job, but don't depend on him for everything.

5. Here are some tips to ________ when you go hiking in the forest.

6. The training programme ________ a series of lectures.

7. Lucy's bright clothes always make her ________ in a crowd.

IV. 根据汉语意思补全下列句子（每空一词）。

1. 这种新机器质量好,而且也不贵。

This new machine ________ ________ ________ ________ and ________ ________ ________.

2. 如果你想有个好座位，早点到那里就很值得。

It's ________ ________ ________ ________ ________ if you want a good seat.

3. 当心急转弯并相应调整你的速度。

Watch out for sharp bends and ________ ________ ________ accordingly.

4. 她的身体状况似乎突然加速恶化了。