We are going to stay there for ______ hour.
( ) Does Wang Bing __________? A. sing well B. sings well C. sing good
( ) Let’s go _________ tomorrow. A. skate B. skating C. skates[
( ) _______ you good at _______? A. Are, run B. Are, running C. Do, running
( ) Liu Tao is good at ________. A. swim B. swims C. swimming
( ) Helen likes ________ on the grass(草地). A. sitting B. sit C. sits