We are going to stay there for ______ hour.
( ) I often swim _______ weekends. A. at B. in C. on
( ) Billy is too fat, he can’t _____of the door. A. get out B. get up C. get to
( ) Peter often _____ an e-mail to his friend. A. send B. sends C. give
( ) What _______ Mike _______ at weekends? A. do;do B. is;do C. does;do
( ) Liu Tao is good at ________. A. swim B. swims C. swimming