2. How long ______ you _____ at this test? You look so tired.
a) has, been working
b) have, been work
c) have, been working
d) did, worked
a) has, been working
b) have, been work
c) have, been working
d) did, worked
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Ответ:
Правильный вариант c);
Объяснение:
How long have you been working at this test?
Ответ:
How long have you been working at this test?
Объяснение: