What a terrible experience! _____ , you are safe, that's the main thing.
| A．Somehow | B．Anyhow | C．Somewhat | D．Anywhere |
When he was alive, the old scientist used to say that knowledge ＿＿＿＿from practice and he gained his experience by doing a lot of practical work.
| A．was coming | B．had come | C．comes | D．would come |
He ＿＿＿articles for our wall-newspaper these three years, and he ＿＿＿about forty articles.
| A．has been writing； has written | B．has been writing； wrote |
| C．is writing； has been writing | D．has written； has written |
The children ＿＿＿＿＿＿ very quiet； I wonder what they ＿＿＿＿up to.
| A．were； are being | B．are being； are | C．are； do | D．are being； do |
Jim talked for about half an hour yesterday.Never＿＿＿＿＿ him talk so much.
| A．I heard | B．did I hear | C．I had heard | D．had I heard |
—— ＿＿＿＿＿ Betty this morning?
—— Not yet, but she is sure to be here before noon.
| A．Have you seen | B．Will you see | C．Do you see | D．Did you see |