[ Relative Clauses ]
A new security door, ______________________ can be operated by remote control, will be installed next month.
A. that
B. it
C. them
D. which

Random Topics:
Gerund & ParticipleSimple Present and Simple PastPrepositions and TensesWH- Question WordsVerb + InfinitivePhrases and TensesHave vs. HasLexico and GrammarGerunds/InfinitivesModals and VocabularyOther quiz:
Grammar › ViewKen is eating all the cake! In a few minutes’ time, ________ it, and there will be none left for anyone else!
A. he might finish
B. he’ll be finished
C. he’ll have finished
D. he’s finishing
Frequency Adverbs › View
Doctors______ work at the weekends.
A. always
B. often
C. never
Gerunds, Infinitives and Modals of Possibility › ViewShe ___ be at home, but I’m not sure.
A. might
B. will
C. has to
D. should
Simple Present Tense › View
We cooked a chocolate cake every monday
A. True
B. False
