Complate the sentences with the right form of the verbs.
1 Nick couldn*t get in because he (to lose)his key.
2 Tom couldn*t buy a pen because he (spend)all his money.
3 Ben felt ill because he (eat )mush ice-cream.
4 Granny couldn*t read the letter because the (break) her glasses.
5 Jane couldn*t go out because she (njt do )her homework.
6 Ted got a bad mark because he (not learn) the poem.
7Kate couldn*t make the cake ,because she (not buy)flour.