Can I go swimming，Mom？
Certainly．But you ____ be back by four．（ ）
| A． |
can |
B． |
may |
C． |
might |
D． |
must |
选出划线部分发音为/i：/的单词．（ ）
A．breadB．replyC．remindD．easy
Do you know_____？
Yes． They'll go there by train at 8：30 tomorrow morning．（ ）
A．how would they leave for Beijing
B．hew will they leave for Beijing
C．how they would leave for Beijing
D．how they will leave for Beijing
Why have I never seen this kind of 5G mobile phone？
Because it_____by Huawei last week．（ ）
A．was producedB．would produce
C．have producedD．was prodocing
Has Jack solved the difficult math problem？
Not yet． But I believe he_____in a few minutes．（ ）
A．has worked it outB．will work it out
C．was working it outD．works it out
To the students， what should the teacher_____at school？
Of course the ways they study， I think．（ ）
A．give upB．part withC．care aboutD．clear out