There’re 103 elements found in nature, ________are metals.
| A．most of which | B．most of them | C．most of that | D．most which |
This is an illness that may result in total blindness if .
| A．being left untreated | B．left untreated |
| C．not left treating | D．not having left untreated |
—Excuse me.Did you notice whether the No.108 Bus had gone by?
—NotI’ve been standing here.
| A．as | B．when | C．since | D．while |
―What do you think made Tom unhappy?
―his new bicycle again.
| A．As he lost | B．Lost | C．Losing | D．Because of losing |
that I advised them to go to see it.
| A．It was so exciting film | B．So exciting a film was it |
| C．It was such exciting film | D．So an exciting film was it |
―I’ll be away on a business trip.Would you mind looking after my cat?
―Not at all，.
| A．I’ve no time | B．I’d rather not | C．I’d like it | D．I’d be happy to |