Karma İngilizce Soruları 4 23. Soru

Bu Testin Birincisi deryaaydin

100 %

23.

If the new computer system ………to us properly, we………so many mistakes on it now.

has been explained/don't make

is going to explain/won't have made

has been explaining/wouldn't have made

had been explained/wouldn't be making

is explained/aren't making