2(x+1)-3x=4-(5+2x)

Trong các phản ứng hóa học sau, phản ứng nào là phản ứng hóa hợp:
 CaO+H2O --> Ca(OH)2
 

bạn vừa trở về sau một kỳ nghỉ ở nước ngoài. Viết thư cho hướng dẫn viên du lịch của bạn, Jonathan Atkins, cảm ơn anh ấy vì đã làm cho kỳ nghỉ của bạn trở nên thú vị. Sử dụng những ý tưởng dưới đây để giúp bạn viết thư (80–100 từ)

Rewrite the sentences in reported speech. ..
31“Nancy wants to go on the underwater archaeology expedition,” Tony said .___________________________________________________________________.32“Peter has borrowed my book on space exploration,” Maria said .___________________________________________________________________33“We’re doing a science project in class this week,” the children said. .___________________________________________________________________34“Weenjoyed an impressive view of the earth from the spacecraft,” the astronaut said .___________________________________________________________________35“John will return from Egypt next week,” Lucy said .___________________________________________________________________
 

Fill in the blanks with the correct passive tense of the verbs in parentheses.
 e.c.g Many works of art were damaged(damage)in last night’s fire .
17 Tickets to the art exhibition must_________ (buy)in advance.
18 Swan Lake _________ (perform)by the .junior ballet class next month.
19 The Sistine Chapel_________(paint) .by Michelangelo between 1508 and 1512. 20 Only a limited number of students________(accept)to the school of performing arts every year .
21 Andy Warhol’s work can_______(see)online.
22 An exhibition of local artists’work______(hold)at the city’s art gallery every spring