__________ our manager objects to Tom's joining the club, we shall accept him as a member.
| A．Until |
| B．Unless |
| C．If |
| D．After |
children believe they can succeed, they will never become totally independent．
| A．If | B．Though | C．Unless | D．When |
The climate conference was attended by 11,000 people, it the largest UN gathering ever held.
| A．making | B．to make | C．made | D．to be making |
Bob's lectures a fairly wide range and I can't sum up what he says in a few sentences.
A. covered B. conveyed C. considered D
. commanded
They don't feel safe in our town at night because it so dangerous. There's a robbery every week now.
| A．becomes | B．became | C．has become | D．had become |
We should bear in mind that social development and balance of nature should go in .
| A．company | B．sympathy | C．association | D．harmony |