—Why are you so excited?
—Lucy invited me ______ to her birthday party.
A.to go | B.go | C.going | D.went |
The dictionary mustn’t ________ from the library.
A.take away |
B.taken away |
C.are taken away |
D.be taken away |
You will not succeed ______ you work harder.
A.if | B.when | C.unless | D.because. |
--Tom,be careful not to drive to fast._________ .
--Thank you for your advice.
A.It’s better to be safe than sorry. |
B.Too many cooks spoil the broth. |
C.Many hands make light work. |
D.Every dog has its day. |
We must do everything we can _________ our earth clearer and safer.
A.made | B.to making | C.make | D.to make |
We all know that paper burns in _________ .
A.CO2 | B.N2 | C. O2 | D.CO |