So suddenly ________that the animals in the zoo looked very frightened during the total solar eclipse (日全食)．
| A．did the sky turn dark | B．the sky did turn dark |
| C．turned the sky dark | D．was the sky turned dark |
When I was at a loss, the thought of traveling abroad did _____ to me.
| A．occur | B．happen | C．strike | D．belong |
— Can I come and have a look at your new house?
— Yes, ________!
| A．with pleasure | B．I like it | C．I quite agree | D．by all means |
Looking back, Diana, a fashion designer, ______ her achievements to the goal she set, the education she received from the college, and above all, the efforts she made.
| A．adds | B．connects | C．devotes | D．owes |
Clinical evidence began to ______ suggesting that the new drugs had a wider range of useful effect than had been predicted from experiments in animals.
| A．operate. | B．strengthen | C．accumulate | D．approve |
The terrible earthquake took place early this month ______ three southern countries meet.
| A．where | B．when | C．that | D．which |