---I have great ___ in learning physics and I’m so worried. Could you help me?---Sure, I’d be glad to.
We’ll climb the mountain _______ the weather is bad this weekend.
–I’m planningthe weekend with my grandparents, Mom. --Oh, don’tto buy them some nice food.
–When did Sam arrive _____ Guangzhou? --the morning of November 16th .
Please ________ when the train will leave.
There _______ a dolphin show at the zoo tomorrow evening.