It is not difficult to ______ Mr. Huang from among a crowd because he is above average height.
In order to prevent the fire spreading, some of the houses nearby had been ________ before firemen arrived.
Peter hurried through dinner, changed into old clothes, _______ in the lab for three hours.
When I got home, I found the door open. A terrible thought ________ me that someone broke into my house.
--What is an e-pal ?---An e-pal is someone you write e-mail to.---__________.
In order to look after her sick daughter, the old lady asked for a week’s ________.