It is normal for kids to feel anxious and not to be able to ______ their studies just before a quiz or an examination. Parents should try their best to help them relax within their power.
| A．settle down | B．devote to | C．get down for | D．settle down to |
In this experiment, they are woken up several times during the night, and asked to report what they＿＿＿＿.
| A．had just been dreaming | B．are just dreaming |
| C．have just been dreaming | D．had just dreamt |
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 |
She ＿＿＿＿＿ to the office than she got down to writing the report.
| A．has no sooner got | B．had hardly got | C．no sooner got | D．had no sooner got |
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 |
—— Look at the black clouds.It ＿＿＿＿＿＿ soon.
—— Sure.If only we ＿＿＿＿＿out.
| A．is raining； didn’ t come | B．is to rain； won’ t start |
| C．will rain； haven’ t started | D．is going to rain； hadn’ t come |