Theengineersinthislabspentseveralweeks_______theirplansforthenewbicycle.
A、countingMany kinds of animals are believed to have _________from the earth
Several loudspeakers are _______ from the ceiling and we can hear the speaker very clearly.
Sometimes it is very difficult to _______ some of the English words. Even the native speaker can not help.
Pleasebeserious.Iamnot_______.Youshouldconsideritcarefully
Wecannot_______allthemagazinestogether.
