1) Mary did not stop working in the garden until her face was hot and red.
It was not until ...
Not until ...
2) He did not reunite with his family until 1975.
It was not until ...
Not until ...
3) I did not know anything about that flower until I saw it in a fair.
It was not until ...
Not until ...
4) She did not start working until her child was five.
It was not until ...
Not until ...
5) I did not go to bed until I finished watching TV.
It was not until ...
Not until ...
6) The Titanic was not lifted to shore until 1998.
It was not until ...
Not until ...
7) She did not publish her first novel until she was 54.
It was not until ...
Not until ...
8) He did not know how to use a computer until he started working for the company.
It was not until ...
Not until ...
Complete the sentences with the correct adjectives of the verbs in brackets:
1) Little Joe was getting ... during the class. (bore)
2) He reckoned that the class was ... . (bore)
3) It's so ... when the elevator breaks down. (annoy)
4) George gets so ... when the elevator breaks down. (annoy)
5) What an ... sight! (amaze)
6) Felix was ... at the news. (amaze)
7) What an ... time we had! (excite)
8) Hans gets very ... when there's a concert in his university. (excite)
9) It was a ... story. (shock)
10) He was very ... with his results. (please)
11) It was very ... when I saw them together. (embarrass)
12) I loved the book and found the film very ... . (dissapoint)
13) The dinner was ... . (disgust)
14) It was really ... with him for turning up late. (annoy)
Cho 7,8 g hỗn hợp 2 kim loại là Mg và Al tác dụng với dd H2SO4 loãng dư. Khi phản ứng kết thúc, người ta thu được 8,96 lít khí được ở đktc.
a) Tính khối lượng của mỗi kim loại trong hh ban đầu.
b) Tính thể tích dd H2SO4 2M cần dùng, biết người ta đã lấy dư 10% so với lượng phản ứng.
Chia m g hỗn hợp X gồm Mg và Al làm 2 phần bằng nhau:
- Phần 1: Cho tác dụng hết với 40 ml dd H2SO4 loãng 1M. Sau phản ứng thu được V lít khí.
- Phần 2: Cho tác dụng hết với dd H2SO4 đặc, nguội. Sau phản ứng thu được 224 ml khí có mùi hắc.
Tính giá trị a và V. Biết các khí được ở đktc.