---Is this the first time you ______ Xi’an? --- No. But ______ here, the city wasn’t so modern.
| A．have visited; the first time I came | B．visited; the first time I came |
| C．have visited; for the first time I came | D．visited; the first time I’ve come |
Both bread and butter ______ on sale in this shop.
| A．is | B．are | C．have | D．has |
The problem is _____ we can master modern science and technology in a short time.
| A．if | B．that | C．what | D．how |
Give it to _____ you think can do the work well.
| A．who | B．whoever | C．whom | D．someone |
Included _____.
| A．all kinds of books | B．was all kinds of books |
| C．were all kinds of books | D．all kinds of books are |
Here _____. This is our classroom.
| A．are we | B．we are | C．you are | D．are you |