题 题目 · A2 · 5 min
祈使句说明
为科技操作说明选出正确的动词形式。
0 / 5
1 ____ the button to turn it on.
2
Do not off the device while it updates.
3 ____ sure the Wi-Fi is on.
4 ____ the app before you sign in.
5
Please in with your email.
为科技操作说明选出正确的动词形式。