--- _____，I have never seen anyone who's as capable (有能力）as John.
| A．As long as I have traveled | B．Now that I have traveled |
| C．Much as I have traveled | D．As I have travled so much |
Seldom ________ TV when he studied in senior high school.
| A．he watches | B．he watched |
| C．does he watch | D．did he watch |
Everything，unless otherwise ________，will go on as planned.
| A．stating | B．states | C．to state | D．stated |
—It's a pity that Andrew didn't want to go to the conference.
—________ willing to go，we could have paid all his expenses.
| A．Had he been | B．Being |
| C．Was he | D．He had been |
The warning we were given as children ________ an apple a day keeps the doctor away may，in fact，have a scientific explanation.
| A．that | B．who | C．where | D．which |
WalMart，the world's largest retailer(零售商)，sells in three months ________ the numbertwo retailer Home Depot sells in a year.
| A．that | B．which | C．when | D．what |