A big crowd gathered _____ him ______.
| A．to hear; speak | B．hearing; speaking |
| C．to hear; speaking | D．hearing; to speak |
I feel so excited! At this time tomorrow morning, I ________ to Shanghai.
| A．will be flying | B．will fly |
| C．have been flying | D．have flown |
Colin was about to get off the camel ________ a child ran towards him.
| A．while | B．when | C．as | D．since |
Playing on the football pitch ____________________.
| A．some students are with their P.E. teacher |
| B．their P. E. teacher is with some students |
| C．some students with their P. E. teacher are |
| D．are some students with their P. E. teacher |
__________ that these creatures are linked to a common ancestor.
| A．As is believed | B．What is believed |
| C．That is believed | D．It is believed |
These viruses, if ________ in, can result in illness or even death.
| A．breathing | B．breathed | C．breathe | D．to breathe |