If you_drive) along the river bank it_is twenty miles out of your way. If you_take ) your mobile phone into class,it(must) be turned off. We __do_(not use) calculators when we _are__(writing) a test. If you_ push) this button, the volume _will increase). If you close) the door, it will be locked) automatically. I_ wear) my old boots when I work) . when I _ cook )salads , I _ use) only olive oil. When I concentrate), please __do_(not make) so much noise. Unless prices rise),it__wil _(not be) a good investment. Unless someone asks) you politely,_ refuse) to do anything.
