2.3 Fill in each blank with one suitable preposition (0,5pt). 1. In the end, he succeeded .............................. solving the problem. 2. She apologized .............................. her teacher for her coming late. 3. Mr. Jones is in charge ............................ the planning department. 4. We can’t deal ............................... this problem without his help. 5. We were all surprised ........................... the news about our success.

He has got a bulldog quality. He always insists ____ solving each problem completely.

My teacher hopes me ____the problem by myself

A. solve        B. solved      C. solving       D. to solve

The table was so heavy that I..............lift it

A hardly B even C almost D nearly

I am hoping .................. the problem

A to solve B for solving C solve D solving

Compute the vertex angle of an isosceles triangle given that the base angle ia equal to 40o

For Xoy right angle, point A on Ox ray, ray Oy.lay point B on point E on the beam of rays Ox, point F on the beam of rays Oy puzzle that OE = OB, OF = OA.

a, prove that AB = EF and EF square AB

b, Call M, N wrong turn is the midpoint of AB and EF. Prove that triangle square omn weight

This online course promises to help learners improve their problem-solving and ... skills.

A. communicate          B. communicated          C. communicator          D. communication

He has got a bulldog quality. He always insists _____ solving each problem completely.

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