Jogging every morning is ________ good habit. Stick to it, and you'll make ________ great progress.
| A．a; / | B．a; a |
| C．the; a | D．/; / |
________ doesn’t seem to have been much difficulty in solving the problem.
| A．It | B．That | C．There | D．He |
It is fairly common in Africa for there______ a group of expert musicians surrounded by others who also join in the performances.
| A．being | B．to be |
| C．be | D．is |
I_____ violin lessons every two weeks, but I think I ‘ll make it every week from next month.
| A．am having | B．have had |
| C．have | D．have been having |
----- Which share is meant for me ? ----- You can take _____ half. They are exactly the same.
| A．this | B．any | C．each | D．neither |
----- What’s the model plane look like?
----- Well, the wings of the plane are ______ of its body.
| A．more than the length twice | B．twice more than the length |
| C．more than twice the length | D．more twice than the length |