I’m sorry you’ve been waiting so long, but it’ll still be some time _____ Brian gets back.
---How long have you been here? ---Only about five minutes. Henry and Simon ______ here with me. A.walkB. have walked C. walked D had walked
A new ______ to teaching languages is being used here, and it has turned out to be very helpful to the students.
Very soon the message drew dozens of responses from his classmates and other teenagers,all ______ about their excessive workload during the National Day holidays.
---Pity you missed the lecture on nuclear pollution. ---I ______ it, but I was busy preparing for a job interview.
The food ran out early, but______ the party was a success according to the guests present that evening.