MrHopkins has not yet answered my question ______ I can go with him to______he calls the Underground Treasure House next week

This is the third time the famous scientist __________ the United States.

In some countries poisonous snakes can be used to __________ the jewels in the shop at night.[ ]

Have you ever seen ______ China pavilion(展馆) ______ traditional oneindeed.

I Beijing in a few daysDo you know when the earliest plant ?