AS SOON AS THE SPACECRAFT INTO SPACE, THE CREW STARTED TO OBSERVE...

498. - TẬP HỢP CÂU HỎI TNKQ CÁC MÔN THI KHẢO SÁT KHỐI 9
TẬP HỢP CÂU HỎI TNKQ CÁC MÔN THI KHẢO SÁT KHỐI 9

498. As soon as the spacecraft into space, the crew started to observe the

sun.

A. has travelled B. had travelled C. travelled D. was travelling