1. People didn't_have smartphones twenty years ago
a use bused cuse to
2 What countries recently?
a did you visit b have you visited care you visiting
3 We_ across the US for the last three weeks.
a have been travelling b have travelled care travelling
The bottles go in the recycling bin, ___?
a haven't they b don't they c can't they
5 We
We_more problems, if we don't protect our environment.
a are having b have c will have
In the future, we do all our lessons online,
a are able to b will be able to c perhaps
You volunteer at a local charity and give back to the com
a could b perhaps c need
8 The film in Australia last year.
a is made b made c was made
9 Students_speak during an exam or they will fail
a shouldn't b don't have to c mustn't