-Have the students started to do the experiment?-Yes,it_____
Once Newton started to do experiment he forgot about the tim
The students have ___ homework to do.
F___these instructions to do the experiment.
_______ the experiment,the students were asked to watch sile
The experiment the students of science devoted themselves to
_____will do the experiment comes to the professor’s office(
-Do you have enough students to carry the boxes?
The students always have ___ homework to do too much?
Their ides is to do the experiment by themselves.
___of the students said"yes" to the plan.
what _____(问题)do the students have
we carry out the experiment that giving money to students 要不