See _________ your invention works as it is planed. If not, do more research, redesign it.
| A．since | B．after | C．until | D．if |
20-21九年级上·全国·单元测试 查看更多[1]
（已下线）《同步单元AB卷》仁爱版英语2020-2021学年九年级上册Unit 4 Topic 1 （B卷提升篇）
更新时间：2020-12-08 08:38:16
|
相似题推荐
单项选择
|
较易
(0.85)
真题
【推荐1】She says that she'll have to close the restaurant ______ business improves.
| A．if | B．after | C．unless | D．when |
您最近一年使用：0次
单项选择
|
较易
(0.85)
【推荐2】You should search for some information and learn more about the rules ________ you visit the Science Museum.
| A．until | B．before | C．while | D．after |
您最近一年使用：0次
单项选择
|
较易
(0.85)
【推荐1】Mike has no time to buy a gift for Alice. So he doesn’t know _________her birthday party.
| A．whether to take part in | B．if to take part in |
| C．whether to join | D．if to join |
您最近一年使用：0次
单项选择
|
较易
(0.85)
【推荐2】It's so quiet here! We can hardly believe ________ we're in the city centre.
| A．what | B．if | C．that | D．where |
您最近一年使用：0次
单项选择
|
较易
(0.85)
【推荐1】I have collected stamps ________ I was nine years old.
| A．before | B．if | C．since | D．when |
您最近一年使用：0次
单项选择
|
较易
(0.85)
真题
【推荐2】The great scientist Yuan Longping left us last month, ________ he will live in our hearts for ever.
| A．so | B．but | C．if | D．since |
您最近一年使用：0次
单项选择
|
较易
(0.85)
【推荐1】Many scientists believe more animals will be endangered _________ human beings take actions to change the way they live.
| A．but | B．though | C．unless | D．until |
您最近一年使用：0次
单项选择
|
较易
(0.85)
名校
【推荐2】The doctor says that I still have to take the medicine________ I'm getting much better now.
| A．until | B．however | C．although |
您最近一年使用：0次
