Complete the sentences with the correct form of the verbs (present simple, present continuous, or present perfect).
1. __________ (you/ talk) about the upcoming journey? Can I join? 2. Recently, the United States__________ (alter) the whole of their immigration laws. 3. Either kangaroo or Sydney Opera House__________ (symbolize) Australia. 4. Look at the London Eye! The wheel__________ (appear) motionless, but it__________ (rotate) slowly. 5. Look! The concert__________ (start) at 7 P.M. and__________ (end) at 9 P.M.
