—Three problems are too hard to . Will you give me some advice?
—There are many ways. The mostt important is to have a careful plan.
A.work out B.look out C.hand out D.break out
I tried two bookshops for the dictionary I wanted, but ________of them had it.
A.either B.both C.neither D.none
﹣ When was the Belt and Road Forum (一带一路高峰论坛) held in Beijing?
﹣ ________ May 14and 15.
A.At B.On C.In D.To
I had trouble thinking _________after that because I was very afraid.
A.recently B.clearly C.suddenly D.heavily
The ice in the lake is as _________ as it was before.
A.thin B.thinner C.thinnest D.the thinnest
Mark didn't wake up _______ his friend called him this morning.
A.before B.while C.until D.after