Краткий ответ
a) to get
b) lending
c) go out
d) tidy up — do
e) to be
f) to swim
g) discussing
h) studying — to do
i) to do — to do
j) to buy
k) to do
l) doing — doing
Как выбрать форму
После mind, avoid, enjoy, finish нужен глагол с -ing:
- mind lending
- avoid discussing
- enjoy doing
- finish studying
После let и make — глагол без to:
- let you go out
- make you tidy up
А после have to тоже основа глагола: have to do.
После pretend, promise, plan, afford, would like, teach — to + глагол:
- pretended to be
- promised to do
- planning to do
- afford to buy
- would like to do
- taught you to swim
После spend time — глагол с -ing:
- spend time doing it
Проверка:
- «Do you mind lending…?» — не «to lend».
- «make you tidy up» — не «to tidy up».
- «finish studying», но «would like to do» — форма зависит от глагола перед пропуском.
