Mother ______ the baby gently on the bed and then bent down to pick up the toy _____ on the ground.
| A.laid; lying | B.laid; lie | C.lay; lying | D.had laid; lay | 
Are the parents who let their child who is ______ walk in the dark alone at night considerate?
| A.young enough | B.too young to | C.not old enough to | D.so young | 
The telephone,but by the time I got indoors, it stopped.
| A. | had rung | B. | was ringing | C. | rings | D. | has rung | 
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 | 
----- 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 |