Exercise 1. Open the brackets using correct forms of the verbs:
1. Surgeons (extract) teeth that cannot be (treat).
2. The examination of the oral cavity (perform) by the prosthodontist when people want denturues.
3. Bridges, crowns, dentures and artificial teeth (make) of different materials now.
4. Oral therapy (include) such procedures as cleansing and drilling a tooth before filling it in.
5. To have healthy teeth people must (undergo) dental examination once or twice a year.
1) Did Sam begin to work last month?
2) When did Sam begin to work?
3) Sam began to work last month, didn't he?
4) Who began to work last month?
5) Did Sam begin to work last month or last year?
The shild (child or shield) will grow next year.
1) Did smb (child, shild or shield) will grow next year?
2) When did smb (child, shild or shield) will grow?
3) Smb (child, shild or shield) will grow next year?
4) Who will grow next year?
5) Did smb (child, shild or shield) will grow next year?
What did Sam begin last night? - He began work.
When did Sam begin work? - Last night.
Who began work last night? - Sam did.
Sam began work last night, didn't he?/ Sam didn't begin work last night, did he?
2) Will child grow next year? - Yes, it will./ No, it won't.
What will child do next year? - It will grow.
When child will grow? - Next year.
Who will grow next year? - Child will.
The child will grow next year, won't it?/ The child won't grow next year, will it?