A survey of the opinions of experts ____ that drinking a glass of hot milk before going to bed helps one sleep well．
| A．shows | B．show | C．is showing | D．have shown |
My grandma has __ in bed for two months.
| A．lay | B．lied | C．been lying | D．laid |
It is a long time ___
| A．when I saw you last | B．since l saw you last | C．for I saw you last | D．then I saw you last |
By the end of last term, we ___ more than 2000 English words.
| A．had learned | B．have learned | C．learned | D．have been learned |
Mary is absent from school today because he __ a cold.
| A．catches | B．had caught | C．has caught | D．will catch |
The meeting has begun, I wonder how long ago ___.
| A．it began | B．did it begin | C．began | D．it has begun |