1. of/ the / let's/ history / museum / visit
2. to / to/ we'd /the/go/like /zoo
3. is / in /this /time/ my/vietnam / first .
<3
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2. I enjoy (be) ____being____ busy. I don’t like it when there is nothing __to do______ (do)
3. Let’s hurry! We must finish (paint) _____painting____ the office before 3:00 today.
4. As we don’t agree (carry out) _____to carry out___ a proposal we generally avoid (discuss) _discussing____ the subject.
5. I don’t mind (remind) _____reminding_ you (lock) ___to lock_____ the door but you’d better (try) ___try___
(remember) _____remembering __ on your own.
6. Please stop (interrupt) ___interrupting__ when I’m explaining something to you. You can (ask) __ask_ questions at the end.
7. He admitted (enter) __to entering ___ the house but refused (steal) ____to steal__ the money.
8. I don’t really fancy (spend) ___spending__ my whole holiday with your cousins. I’d rather (spend) __spend___ my time with you.
9. Those shirts need (iron) ___ironing____, but you don’t need (iron) __to iron___ them now.
10. He wanted (see) __to see______ the house where the president was born.
11. It’s no use (try) ____trying____ (persuade) ____to persuade____ her (change) __to change______ her mind. Spend your time (do) ___doing____ something more worthwhile.
Given a segment AB = 100cm. Let C be a point between A and B. Let M, N be respectively the midpoint of the segment BC, AC. Find the length of the segment MN.
Answer : MN = 50 cm
P/s : k mình nha bạn
On the supposition that AB<AC
AK be the angle bisector of the triangle
\(\Rightarrow\) \(\frac{KB}{KC}=\frac{AB}{AC}=\frac{2}{3}\)
\(\Rightarrow\frac{MB-MK}{MC+MK}=\frac{MC-MK}{MC+MK}=\frac{2}{3}\)
\(\Rightarrow3MC-3MK=2MC+2MK\)
\(\Rightarrow MC=5MK\)
\(\Rightarrow BK=MC-MK=5MK-MK=4MK\)
Let AH be the height of the triangle
\(\Rightarrow\frac{S_{AKM}}{S_{ABK}}=\frac{\frac{AH.KM}{2}}{\frac{BK.AH}{2}}=\frac{KM}{4KM}=\frac{1}{4}\)
If AB > AC then
\(\Rightarrow CM=5MK\)
\(\Rightarrow Bk=CM+MK=5MK+MK=6MK\)
\(\Rightarrow\frac{S_{AKM}}{S_{AKB}}=\frac{\frac{AH.MK}{2}}{\frac{AH.BK}{2}}=\frac{MK}{6MK}=\frac{1}{6}\)
1. of/ the / let's/ history / museum / visit
Let's visit the museum of history.
2. to / to/ we'd /the/go/like /zoo
We'd like to go to the zoo.
3. is / in /this /time/ my/vietnam / first .
This is the first time in Viet Nam.
1. Let's visit the museum of history
2. We'd like to go to the zoo
3. This is my first time in Vietnam