---- What do you think made Mary so upset ?
---- __________.
| A．As she lost | B．Lost | C．Losing | D．Because of losing |
--- Why didn’t you ring me up when Sue arrived?
---sorry, I ______ my essay that was to be handed in by noon.
| A．had written | B．wrote |
| C．have been writing | D．was writing |
It’s only after marriage and having children ________ a person understands others’ feelings.
| A．what | B．when | C．that | D．who |
Although Beijing didn’t establish its first Antarctic research base until 1985, Chinese efforts _________ its influence across the continent are now outpacing other nation’s plans.
| A．expanding | B．to be expanded |
| C．expanded | D．to expand |
So far, Mike has spent about $28,000 on the house and __________ it to cost about $38,000 when it is finished and furnished.
| A．expected | B．expects |
| C．has expected | D．will expect |
When effectively _______, the feedback we share with students or employees can develop their awareness of their own learning.
| A．managing | B．being managed |
| C．managed | D．to manage |