23 a) Match the words and write the word combinations.

Решение:

Соединим слова и запишем словосочетания:

• to take - sightseeing (to take sightseeing)
• to spend - guests (to spend guests - не имеет смысла, скорее всего, имелось в виду 'to spend money' или 'to spend time')
• to invite - summer holidays (to invite to summer holidays)
• to go - sightseeing (to go sightseeing)
• to improve - a dictionary (to improve a dictionary - не типичное словосочетание)
• to borrow - a dictionary (to borrow a dictionary)
• to take care of - care of (to take care of)

Ответ: to take sightseeing, to go sightseeing, to borrow a dictionary, to take care of.