Please hurry up!The plane will _______________in half an hour.（ ）
| A． |
take up |
B． |
take after |
C． |
take off |
If you ______ able to come，I will show you around my hometown．（ ）
A．isB．can beC．will beD．are
The old building ______ down to make room for the city library a year ago．（ ）
A．was takingB．is takenC．was takenD．would take
Look，______ excited the boy is on seeing these cute pandas!（ ）
A．howB．how anC．what anD．what
Where is your uncle，Jane？
He is in Guangzhou．He ______ for a month．（ ）
A．has leftB．has gone
C．leftD．has been away
Chinese people find ______ our duty to help develop African countries along the Belt and Road （一带一路）．（ ）
A．itB．thisC．thatD．these