_______ what would happen, none of them could find a way out.
| A．Left wondering | B．Having left wondering |
| C．Leaving to wonder | D．Having left to wonder |
Many a professor__________looking forward to visiting Germany now.Many scientists
__________studied animals and plants in the last two years.
| A．is; have | B．is; has | C．are; have | D．is; are |
He is one of the boys who__________here on time.He is the only one of the boys who
__________here on time.
| A．has come; have come |
| B．have come; has come |
| C．has come; has come |
| D．have come; have come |
What he’d like __________a digital watch.What he’d like__________textbooks.
| A．are; are | B．is; is | C．is; are | D．are; is |
Not only he but also we __________right.He as well as we__________right.
| A．are; are | B．are; is | C．is; is | D．is; are |
What __________the population of China? One-third of the population__________workers here.
| A．is; are | B．are; are | C．is; is | D．are; is |