Though a typhoon is on the way, people are still looking forward _____ the outdoor concert by the pop singer.
---Where is my pen? --- I _____it.
The man ______ you are talking is in the next room.
— I feel really disappointed not to have got that job. — Don't worry. Maybe something better will ______.
We_____ the old scientist________ his contribution________ the country.
Every student is required to watch the teacher carefully before ___ the chemistry experiment.