[ Tenses ]
In the next thirty years, all fossil fuels __________ replaced by eco-friendly energy sources.
A. are
B. are being
C. will be
D. have been
Select your answer:
Random Topics:
Wish / If only ( Present)Grammar: MorphologyPassive Voice in Past Simple TenseGrammar for TOEFLFuture SimpleAuxiliary VerbsFinite and Non-Finite VerbMuch, many, a lot of, a few, a littleSimple PresentOther quiz:
Grammar › ViewIt _________________ raining while I was at the bus-stop
A. Was starting
B. Start
C. Began
D. Begun
Pronouns › View
Mei Ling is a helpful girl. _________ guided _________to complete my homework.
A. He, his
B. She, her
C. She, me