____________ to think critically is an important skill today's children will need for the future.
| A． |
Learn |
B． |
Learned |
C． |
Learning |
D． |
Having learned |
For a moment nothing happened, and then ______ all shouting together.
| A．voices had come | B．came voices |
| C．voices would come | D．did voices come |
---I have finished my homework.
---___________.Let’s go to play tennis.
| A．So have I | B．I have so |
| C．So did I | D．So you do |
— Did you know any French before you arrived in Washington?
— Never ______ it, actually.
| A．had I learned | B．have I learned |
| C．I learned | D．was I learning |
Only after her mother came to help her for the first few months _____ to begin her propjet.
| A．was she allowed | B．she was allowed |
| C．did she permit | D．she permitted |
At no time the rules of the game. It was unfair to punish them.
| A．they actually broke |
| B．do they actually break |
| C．did they actually break |
| D．they had actually broken |