bought

will go

will be seeing

watches

nhầm xíu nha bn:)

1D

2B

3D

4ko có đáp án đúng

5C

1.we ought to see our dentist twice a year

2.once after breakfast, and once before we go to bed

3.yes we can

4.because they stick to our teeth and cause decay

nope:)

nhìn t6p ms trl là bt:)

carelessly là adv mà adj+N nên phải dùng careless

careless(adj)driver(N)