coileee
So, the question of whether you say at the weekend or on the weekend is not a question of being grammatically correct but of speaking American English or British English, being at the weekend (British English) and on the weekend (American English). So, both are correct.
Answers & Comments
Ответ:
1.а
2.c
3.b
4.a
5.d
6.a
7.c
8.a
9.c
10.d
11.b
12.a
13.c
14.d
15.c
16.a
Ответ:
1. a
2. a
3. b
4. a
5. d
6. c
7. a
8. d
9. a
10.b
11.a
12.d
13.a
14.c
15.a
16.b
Объяснение: