She is_____new comer to____chemistry but she has already made some important discoveries.
_____ he stayed in England , he visited some of his friends.
You two follow me; the rest _____ where you are.
Dear Jenny, thank you for your letter which ______ on April 1st.
_________, they delivered the message as quickly as they could.
I do believe that ______ swim across the river, but, in that situation, I ____ do that.