`9.` He should go to bed early.
→ stay up late: thức khuya >< go to bed early: ngủ sớm
`10.` Putting a knife into an electrical socket is dangerous.
`11.` Nam is not tall enough to reach the top shelf.
→ (not) adj enough to do sth
`12.` His parent are going to play tennis this afternoon.
→ intend to V: có ý định làm gì=tobe going to V: tương lai gần
`13.` The children are not careful enough to do that work (đã gt ở trên)
`14.` The teacher is going to give us a lot of exercises today.
`15.` He runs quickly enough to enter the competition.
$@Ly$
