LiYan reading and speaking in the lab .
How ____ they feel now ?A.are B. can C. do
The cat is ____ a mouse now .chasing B. chase C.chases
His father is a police _____.A.poseman B. office C. officer
How many ____ are there ?A.mouse B.mouses C. mice
Are you__about your little son?A.woorried B.worry C.worryed