This is the last time ______ I speak to you.
A. of which      B. whose     C. that     D. which

Mọi người giúp em với ạ.

1 C

2 D

1) The police arrested two people early this morning.
2) She went to Japan but now she has come back.
3) Dan has already bought two tablets this year.
4) How many games has your team won so far this season?
5) Did you visit the CN Tower when you stayed in Toronto?
6) Have you done your homework yet? – Yes, I finished it an hour ago.
7) There has been an accident in High Street, so we have to use King Street to get to your school.
8) I have not seen Peter since I arrived last Tuesday.
9) Frank got his bike last May. So he has had it for 4 months.
10) I'm sorry, I have not written earlier, but I have worked a lot lately

=> Despite the bad traffic  yesterday, I arrived at the meeting on time

6. economical

7. poetic

8. beautified

9. peacefully

10. friendless

11. religions

Jason _____wanted______ ( want ) to buy a leather jacket  but he _____didn't have_____ ( not/have ) enough money with him.

While Sean _____ was working______ ( work ) on his laptop, hí brother ______was fixing_____ ( fix ) his bicycle.

Last night Ben ______ called_____ ( call ) John, but he _____didn't answer_____ ( not/answer ) the phone because he _____was_____ ( be ) out in the garden.

1 Traditionally

2 practical

3 conveniently

4 modernized

5 encourages

+ Xét 500 gam dung dịch  20%.

Khối lượng trong dung dịch 20 % cũng chính là khối lượng trong dung dịch 90%.

+ Xét dung dịch 90%  = 100%.

Khối lượng nước cất dùng để pha loãng dung dịch là = 500 – 111,11 = 388,89gam