目的状语从句 知识点题库

You can use an egg timer to count down to fifteen minutes        you won't need to constantly look at the clock to see how much time has gone.

Let's not pick these peaches until this weekend ___________they get sweet enough to be eaten.

I left at 6:00        I could catch the train.

I shall write down your telephone number        I may not forget.

Make sure you save all your work on screen ____the computer breaks down.

The doctor shares his phone number with the patients ________ they need medical assistance.

The doctor shares his phone number with the patients they need medical assistance.（用适当的连词填空）