Peter ______ be really difficult at times even though he’s a nice person in general.
| A．shall | B．should | C．can | D．must |
Nothing else ______ more important than water in the place like a desert.
| A．we can’t find | B．can’t we find |
| C．can we find | D．we can find |
______ these pictures, I couldn't help thinking of those days when I was in Beijing and ______ from the top of a thirty-storeyed building, Beijing looks more beautiful.
| A．Seeing; seen | B．Seen; seeing |
| C．Seeing; seeing | D．Seen; seen |
You misunderstood me yesterday, Mary. I wasn’t ______ you when I blamed someone for the accident.
| A．referring to | B．belonging to |
| C．turning to | D．attending to |
Professor Smith gave us a speech last month, ______he expressed his concern about the current global economic trends.
| A．to which | B．in which |
| C．with which | D．for which |
Susan came to the party yesterday, but it was already half past eight ______she turned up.
| A．that | B．before |
| C．until | D．when |