How long do you believe it will be _____ Chinese people land on the moon?

John’s success has nothing to do with good luck. It is years of hard work ________ has made him what he is today.[ ]

Harry Potter V is an interesting movie, so my brother watched it last night.

he dark apartment ___ , who was quite surprised when everyone shouted “Happy birthday!”

I feel really before the interview .—Take it easy. Sure you are the best.