—Where is your sister?—She ________ my mom with cooking.
It will be hard for us to get up in the morning if we________to bed too late.
The song I Believe I Can Fly tells us that believing in________is very important.
(云南)—You look really tired.________? —I didn’t sleep well last night.I had a headache.
We’ll go for a picnic if it________tomorrow. A won’t rain B doesn’t rain C.rains
Can you see the boys________football on the playground?They are my classmates.