Unit 4 : Our past : Test 4

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Nguyễn Thị Lan Anh

Put the verbs in brackets into the correct tense or form.

Dentists can do a lot(0).......(improve) your teeth. They can straighten your teeth by(1).....................................(put) wires on them. These wires(2)....................................(push) the roots of the teeth the right way. The best time for (3)..............................(do) this is while the teeth(4).............................(grow). A lot of dentists, however, prefer not(5).............................(start) doing this before a child(6)………………(be) at least eight. Sometimes a dentist even(7)……………...........….(use) elastic bands(8).........................(make) a tooth straight. Sometimes(9)...............................(pull) tooth out can prevent the other teeth from(10)............................(grow) too close to one another.

Hà An
9 tháng 4 2017 lúc 11:20

Put the verbs in brackets into the correct tense or form.

Dentists can do a lot(0) to improve (improve) your teeth. They can straighten your teeth by(1) putting (put) wires on them. These wires(2) will push (push) the roots of the teeth the right way. The best time for (3) doing (do) this is while the teeth(4) are being grown (grow). A lot of dentists, however, prefer not(5) to start (start) doing this before a child(6) is (be) at least eight. Sometimes a dentist even(7) uses (use) elastic bands(8) to make (make) a tooth straight. Sometimes(9) pulling (pull) tooth out can prevent the other teeth from(10) being grown (grow) too close to one another.


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