We will go camping ________ it doesn't rain tomorrow.
A. before B. because C. if D. so
It's eight o'clock.Jack ________ his room.
A. clean B. cleans C. cleaned D. is cleaning
Alice can't sing ________ dance，________ she can play the piano.
A. but；or B. or；but C. and；or D. or；and
My sister Sarah enjoyed ________ the kite on the farm.
A. fly B. flew C. flying D. to fly
Trees are important to us，so we have to ________ the forest.
A. clean B. describe C. leave D. save
Eddie is very lazy and he ________ exercises.
A. sometimes B. never C. often D. always
