They _______ a certain amount of working experience through volunteer work.
| A．attempted | B．accumulated | C．abandoned | D．accomplished |
Up to now, doctors ___ able to do very little to treat this disease.
| A．are | B．will be | C．have been | D．were |
No wonder the children are excited—this is the first time they’ve been abroad.
| A．trouble | B．problem | C．doubt | D．wonder |
—Excuse me, can you show me the way to Baiyun Middle School?
—Sorry, I don’t know. I’m a stranger here.
—___.
| A．Thank you all the same | B．It doesn’t matter |
| C．Never mind | D．No problem |
I came back again,___ sure I had locked my door.
| A．making | B．to make | C．made | D．makes |
It is highly _ __ that, in many schools, they are going to spend less time in the classroom than they used to.
| A．possibly | B．probably | C．likely | D．lovely |