She had just finished her homework _____her mother asked her to practice playing the piano yesterday.
| A．when | B．while | C．after | D．since |
Although the test________look like a simple one, great care is needed．
| A．may | B．must | C．should | D．need |
The road_______next week leads to Highway 62．
| A．building | B．to build |
| C．to be built | D．built |
Wonderful Friends, a show on Hunan TV, is about _________people get along with animals．
| A．how | B．what | C．why | D．who |
Excuse me, where can I get my car filled up?
There are gas stations at________end of the block．
| A．both | B．neither |
| C．either | D．all |
________online courses can produce good results remains to be seen．
| A．That | B．Whether |
| C．Who | D．Where |