Have you ever seen a doctor? If ______, what happened?
| A．any | B．ever | C．not | D．so |
19．So eager_________a chance to answer questions, little Tommy waved hard and high in class.
| A．he was to be given | B．he was to give |
| C．was he to be given | D．was he to give |
18．_________a US visitor visa twice, the old couple finally gave up their hope of going to America to experience Thanksgiving Day.
| A．Having been refused | B．Being refused | C．Having refused | D．To be refused |
17．If Tom finds a favourite song, he may want to hear it over and over again to the point_________everyone else is sick of it!
| A．which | B．that | C．where | D．When |
16．－Governments at all levels have to take measures to improve the quality of basic education.
－Exactly. _________, students' homework must be greatly reduced.
| A．That's to say | B．What's more | C．Believe it or not | D．In a word |
15．A government, which is responsible for society, must_________to its people how important the method is to prevent AIDS.
| A．get through | B．get on | C．get over | D．get across |