【单选题】
Mr Longman has played the cello for many years [] but he now conducts an orchestra.
①
comma
②
semicolon
【单选题】
Mr. Zhang, _______ we have learned a lot, is very popular among us.
①
who
②
from that
③
from whom
④
whom
【单选题】
Mr Guo told us at the beginning of this term that he _________ born on July 24, 1973.
①
is
②
was
③
has been
④
had been
【单选题】
A: Hello, this is Bill. Id like to speak with Mr Wang, please. B: [填空]
①
Who is speaking over there?
②
Sorry, he is not available at the moment.
③
Can you tell me who you are?
④
Theres no one here by that name.
【单选题】
When Mr. Jones gets old, he will ____ his business to his son.
①
take over
②
hand over
③
think over
④
get over
【单选题】
Mr. Kent is one of those happy people whopleasure from helping others.
①
deceive
②
deprive
③
devise
④
derive
【单选题】
<img class="kfformula" src="20200624/1592998127855778.png" data-latex="{Ba(OH)}_{2}" width="66" height="31"/>·<img class="kfformula" src="20200624/1592998127449837.png" data-latex="{8H}_{2}0" width="60" height="28"/>晶体与<img class="kfformula" src="20200624/1592998127342306.png" data-latex="{8H}_{2}0" width="67" height="28"/>晶体的反应，是（ ）。
①
无法判断
②
不吸热液不放热
③
吸热反应
④
放热反应
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/2F8F4853C2D53A9E4EC65033A79A28E8.png title=16.png alt=16.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4E43E7DC88CA422A2D2660210F51EC76.png title=16-1.png alt=16-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/15A6CA45B775ECAE350681268E68E35E.png title=16-2.png alt=16-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/7CF3CB1F444DC15592165EADAD919990.png title=16-3.png alt=16-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/5A383369486E4ACF064955C4D1B65856.png title=16-4.png alt=16-4.png/>